/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

Kamen Rider Zi-O Revised

Co-Writer GreyKing46

We do not own these characters. All rights belong to Shotaro Ishinomori, Ishimori Productions and Toei Company

Sougo Tokiwa hummed as he drove on his motorcycle, heading towards his destination. He was going to a quaint little café called 'Nascita'.

Sougo had brown hair and black eyes, wearing a pink jacket with a dark shirt, blue jeans and smart shoes, wearing a silver helmet. As he parked up in the cycle-area, he dismounted and took his helmet off. "What a drive." He commented to himself. "I wonder what Sento wanted to talk to me about."

As he headed inside the café, Sougo saw a number of people being served, though the atmosphere seemed to be a bit forced.

"Wait... What's going on?" Sougo frowned, his hand slipping into his pocket and gripping something. He began to pick up speed as he rushed towards the small cafe "Sento!" he called

"Yes, Sir. What seems to be the problem?" Misora's father asked as she stood at the counter "Oh! You are that Sougo boy."

"Sir, what's going on? Where's Sento?" Sougo asked in confusion

"Oh..." the man frowned sadly "I'm sorry but... Sento and Misora have gone missing."

"What? How? When?" Sougo inquired as he was frazzled

"It was a couple of days ago. Misora was going out for ingredients and she didn't come back." Soichi responded sadly. "Sento received a letter to come alone, should we ever want to see Misora again."

"Oh no..." he gulped

"I don't know what else to do." Soichi continued. "If I go to the police they might kill Misora. And if Sento can't help..."

"I... I think I know someone who could help." Sougo commented

"You do? Thank you, Sougo." Soichi sighed in great relief, grabbing his hands in thanks.

Sougo nodded as he pulled out a phone, frowning softly

'I hope he'll take this.' Sougo thought as he rang a number. 'Pick up, pick up, pick up.'

"Hello, Detective Tomari." A voice responded

"Please, Detective Tomari, I need your help! Sento, Build, has gone missing!" Sougo called

"Sento? Who is this?" Detective Tomari asked

"It's Sougo." He responded. "I'm at the nascita cafe."

"I'll be right there." Detective Tomari responded, hanging up the phone to head to his car.

Sougo sighed in relief as he hung up, pulling out a strange red and blue watch

On the front was a strange half mask, the number 2017 on the bottom and a strange gear symbol on the top. This was the 'RideWatch' of 'Build'.

"Sento..." he muttered sadly as we look up into the sky

Kamen Rider Zi-O!

Kamen Rider Build!

Movie War Generation X!

*time skip*

Sougo was now outside, seeing the arrival of a bright red car with black tires.

The car looked sleek and amazing, unique and fantastic.

The door opened, a man getting out

He was black-haired with black eyes, wearing a black suit and red tie, white button shirt with a mole on his chin. This was Detective Tomari, one of the top detectives in the Tokyo area.

"Detective Tomari, I'm glad you're here." Sougo sighed in relief, approaching him.

"It's my job, Sougo. I'm glad you've called up." Detective Tomari answered.

He shook the kid's hand, nodding "So. Let's go inside."

The two men headed back inside the cafe, where Sochiro was pacing gently; though he was serving the last of his customers.

"Hello sir. I am Detective Shinnouske Tomari." he nodded

"Thank you for looking into this." Soichi sighed in relief, looking at Shinnosuke.

"I just need to ask you some questions." he nodded

"Of course, anything." Soichi answered as they sat down.

Shinnosuke took out his note pad and pencil, ready to get the answers. "First, your full name. Next, the full names of those who have gone missing and your relation to them." He rubbed his neck softly "And before you ask, no, he isn't Misora's boyfriend. He is more like her brother and my son."

"I see." Shinnouske nodded "And when did you last see them?"

"Misora went missing two days ago, she went to get ingredients for the cafe. After she was taken, I received a letter the following day about her abduction. Sento went after her immediately after we got it."

"A letter. Do you still have it?"

"Yes, I've still got it. Please, wait here, I'll go get it." He nodded and headed to the backroom.

Shinnouske nodded, making a few more quick notes. Sougo felt the high tense in the air, he looked on at Shinnosuke who was writing intensely and acting like a determined police officer. "What's wrong?" Shinnouske asked suddenly

"What?" he jumped lightly in fear

"What's wrong, Sougo?" Shinnouske repeated

"Well... I'm just worried." he flinched "Just... there are some really bad things that could have happened to them."

"I understand. And whoever's done this has some real power." Shinnosuke nodded, trying to reassure him. "Sento isn't going to lose to some random punks."

"But who'd be powerful enough to take both Misora and Sento?" Sougo asked, fidgeting his hands.

*elsewhere*

A male figure groaned as he slowly awoke, blinding lights all he could see, his eyes flinched as he slowly awoke from the blinding lights. He was wearing a white jacket over a striped black and white shirt, blue jeans, a red and white right sneaker and a blue and white left sneaker; he had black hair and dark eyes, from both his irises and exhaustion. He pulled his hand over his eyes as he slowly got up. "Urgh...Ever hear of a 'dimmer'?" He quipped.

The man, Sento Kiryu, stood up while rubbing his eyes to get the spots out of his vision

"Welcome, Sento Kiryu." A voice spoke through a speaker. "You're finally awake."

"Hmm?" Sento blinked as he looked around as his vision returned. He was in a large room, black X's on the walls "... Ah, Foundation X. I was wondering when I'd see you again. How's Enigma by the way?"

The voice was silent. Sento smirked, knowing he had touched a nerve. "Very cute, Mr Kiryu."

"Eh, I prefer handsome. Or adorable. I am the main character after all." Sento stretched "So. You are the ones who kidnapped Misora and used her to get to me. What's your plan this time?"

"We know what you did, Mr Kiryu. Fusing your world with ours." The voice said seriously "What we had been planning with Enigma... Only perfected. Using the power of the... Pandora Box, correct? How."

"Ah, have you not listened to my Web series? I know we covered it there." Sento smirked as he reached into his coat and frowned "Ah. I don't know what I was expecting. Taking my Build Driver and Full Bottles. Actually intelligent. I was hoping you'd be more incompetent."

"Underestimating your opponent is a flaw with you, Mr Kiryu. Something we have researched on you." The voice answered. "Now again; how did you manage merging our worlds?"

"Again, the Web series explained it." Sento huffed "It needed the power of the being known as Evolt combined with the energies of the White Pandora Panel and the Pandora Box. And Evolt isn't a thing anymore, unfortunately." Sento was lying at the end, but hey the stupid manipulative space snake was in space so basically the same thing. Hopefully, he flew into a black hole and died, would be ironic.

"That is a shame." The voice responded after a brief moment of silence. "You could've been of use to us."

"Really? How? What's your plan?" Sento asked as he leaned against the wall

"Simple. We found a world where we rule." The voice replied

"Ah! I see! So you wanted to use those things to fuse this world with that one so you'd be in charge. I see." Sento nodded "Too bad it won't work without Evolt."

"... Well... If we Evolt is not an option... I guess we will just have to make a new one." The voice responded

Sento froze as he heard that. ''Make a new one'?' He looked up at wherever the tannoy was. "What do you mean? 'Make a new one'; create a new 'Evolt'?"

"Oh. Just wait." The voice laughed "Your Web show gave us the perfect idea." They shot back darkly

*with Sougo and Shinnouske*

Shinnosuke now had the letting from Soichi, putting it in an evidence bag, he was ready to analyse it back at the station.

"So. Do you know who'd want to kidnap them?" Shinnouske asked

"I'm sorry, no. I don't have any enemies I'm aware of. Unless you count the chain coffee stands down the road." Soichi responded with a joke, trying to cope with the anxiety.

"But do they?" Shinnouske said clearly

"I-I don't know!" Soichi answered, almost breaking down from the stress.

"Okay. Sorry, sorry." He sighed

"Please. Save my daughter. Save Sento." Soichi begged

"I promise." Shinnouske nodded confidently, closing his notebook "Sougo. Let's go."

Sougo double-took quickly, before nodding. "Y-Yes, Sir." And entered the car.

He sat there, in the passenger seat, as Shinnouske took the driver's seat and drove off.

"This is definitely a fast car, Shi-Sir." Sougo gulped as he felt the speed of the Tridoron.

"Of course it is." he nodded

"Where are we going first? The Police Station?" Sougo asked as they drove.

"Yes, to drop this evidence off. Then we need to get some more help if this is as big as I think it's going to be." Shinnosuke answered, "And then we will see what we can do."

"... Should I call people who I think can help us?" Sougo asked, "I think that Shoutarou and Kougami might be able to help."

"That's not a bad idea, give them a call immediately." Shinnosuke answered

"Right." he nodded

Sougo pulled out his phone, calling the Fuuto Detective first. He held the phone next to his ear as he listened, hearing the rings until finally, someone answered.

"Hello, hard-boiled Detective Shoutarou Hidari here. How can I help?" the man on the other side of the line asked, Sougo hearing females giggles at the same time in the background.

"...Err. Mr Shoutarou, it's Sougo. We need help with an immediate case. Sento and Misora have been kidnapped." Sento awkwardly responded

"... What?! Tokime, back up! Sorry, sorry. Listen, this is serious. Yeah, I'll be back in a minute. Sorry." Sougo heard Shoutarou yelled, and the ruffling of cloth

Sougo blushed as he heard that and hung up.

"Anything? Is he going to help?" Shinnosuke asked as they parked up.

"...I. Don't. Know." Sougo squeaked nervously as his face was flushed

Ring
Ring

"Hello?" Sougo asked

"Sorry kid, it's me. I'm outside and ready to talk. What's this about Sento going missing?" Shoutarou asked "Phillip is going to be upset to hear his science bro has disappeared."

"We think he's been kidnapped." Sougo explained "But we don't know by who."

"... Damn it. It can only be Foundation X." Shoutarou hissed a few moments "Those damn lunatics."

"Foundation X? Who's that?" Sougo asked

"Wait... Did you say Foundation X?!" Shinnouske blinked in shock

"They are... You could call them investors." Shoutarou explained, "They invest in experiments to make super weapons."

"S-Super weapons? Are we going against a government or something?" Sougo asked in shock, feeling in over his head.

"Not a country. Every country. They invest in other people creating powerful weapons. We have faced some here in Fuuto. Gaia Memories, psychics, what are basically zombies. And according to others they have been involved in the creation the Lockseeds, WizardDrivers, Gashat's and have been researched Medals and Astro Switches, dimensional tech and Sento's Rider system. And they've most likely researched more than just that. They use this research, and try to enhance it, to create a way to rule the world. But they have never made a direct play to take over, instead of using agents. Every Rider investigates and fights them any chance we get, we've torn into their operations a lot. If they've kidnapped a Rider, especially one as smart as Sento, that means they are either close to something unlike we've ever seen or they are desperate."

"E-Excuse me." Sougo asked before catching himself onto the side of the police station, almost coming to collapse and breathing heavily in shock.

"Are you okay?" Shoutarou asked as Shinnosuke got the phone. "Sougo, what's going on?"

"He's almost fainted." Shinnosuke responded, answering the phone.

"Ah, all the sudden shock." Shoutarou agreed. "Is he gonna be alright?"

Sougo took deep breathes and exhaled cautiously. "Y-yeah. I-I'm okay. Hoo...I'm alright."

"Pass me back. I have something important to tell him." Shoutarou added

"Sure. Sougo, here." Shinnosuke spoke, passing the phone back.

"Yes?" Sougo asked, listening to the call.

"Listen Sougo. This is important. I won't be able to make it to help. Tsukasa is in another dimension on a holiday with his family so our fast travel isn't available. I can't make it in time. You have to hurry. Foundation X's plots are a rapid pace. Once they start, they are finished by the end of the day. I don't know how long you've got, but if kidnapping Sento is part of their plan you have no choice but to hurry and save him. Who knows what would happen." Shoutarou explained seriously

"I... I get it boss." Sougo nodded nervously

"... And here are some words to help." Shoutarou sighed "It is a tough world. Supporting each other is the only way we can get through the game of life. Got it kid?"

"Yeah... I think I do." Sougo nodded

"Good. Good luck." Shoutarou nodded before he ended the call, the disconnected noise filling the phone.

Sougo hung up his side of the phone and looked at Shinnosuke, who knew the weight of the situation and gave a single nod. The two Riders headed into the police station where they were going to examine the evidence.

He'd call Mr Kougami after.

"Rinna, we've got a piece of evidence we need examining." Shinnosuke asked as he handed the evidence bag.

"Oh, hey Shinnouske. Sure." she nodded

"We're heading out, it's a kidnapping case." Shinnosuke continued

"Really? I'll get right on it." She nodded, almost turning serious.

"Yes, I'd like to talk to Mr Kougami, please. It's important." Sougo asked through his phone.

"He's calling his boss?" Kyu asked, as he looked up from his computer.

"Hmm. And a good thing too. We need help with this." Shinnosuke answered

Their Director looked at his phone, observing their fortunes once again.

"What?!" Sougo suddenly yelled as he held his phone

"What's happening?" Shinnosuke reacted.

"It's Mr Kougami's company, it's under attack by some red monster!" Sougo answered, repeating what he just heard.

"Darn it. Let's go!" Shinnouske hissed, rushing out

Director Jun tried to call out to the pair, who had just run out. But he was too late. "Darn it...Not again." He frowned and looked at the screen.

Red.

A blood red.

Running outside, both Sougo and Shinnosuke entered the Tridoron, revving the car and almost peeling out of there at top speeds...within the regulated speed-zones of course. But this was an emergency, so Shinnosuke had to activate the sirens.

With them going full force they quickly arrived at their destination.

"What exactly did they say? I want specifics, Sougo." Shinnosuke inquired, not wanting to go in blind.

"They said that a 'Red Humanoid' creature was attacking, but with all the carnage, they couldn't give an accurate description." Sougo responded.

"Sounds like we're going in High Gear, Shinnosuke." Mr Belt commented as he was resting in the car's dashboard.

"Right, Belt-san. Most likely Foundation X. I heard they were once funders for Kougami Foundation, during its earlier years."

"But why attack him? What's he done to them?" Sougo asked nervously as they bumped over speed bumps at a high speed.

"'Former funders', Sougo. They were researching OOO's transformation means." Shinnosuke answered. "Maybe he developed something they wanted."

"I really hope not. He's a nice guy." Sougo admitted, being an employee of his as they got out of the car, Shinnouske putting Mr Belt on.

"You have your belt?" Shinnosuke asked

"Right here." Sougo responded

ZIKU DRIVER!

The two ran towards the front of the Kougami Foundation and saw the debris and rubble around the location. Just devastation among the building.

And there, they saw it. A red humanoid figure.

It was a black body-suited Rider with blood-red armour. His boots seemed to be modelled after a rabbit's head, robotic with curved ears going up the sides of the lower leg. His arms had segmented pieces that looked like a rabbit's body, with the ears bent back with a fainter red on the outside, on the Rider's fists were piercing jagged eyes on his knuckles. His torso was red with sections of black, giving an image of a rabbit's jagged head with the reverse outline of an 'O' with a plus sign segmenting it. On his shoulders, there were two spout-bags with the spouts pointing upwards, depicting the jagged rabbit's head. And finally his helmet, yellow eye visors with jagged edges to indicate eyes, a blood-red and black outline, almost giving a gaunt skull-like appearance. And one last thing; around his waist, was a strange blue and silver Belt with a yellow spanner on the right-hand side, with a strange red spout-bag in the middle. It had faint red colouring with a black Rabbit's head in the centre looking menacing.

"What on Earth?" Sougo asked in shock.

"A New Rider?" Shinnosuke asked as they observed the 'Rider'.

"Wait... Isn't that the SclashDriver that Cross-Z Charge, Grease and Rogue use?" Sougo blinked, recognising the belt

"Who are you?" Shinnouske frowned, flicking the Ignition Key on Mr Belt

"Ah~. You can call me... Kamen Rider... Blood Build." The Rider said, flexing his hand slightly. His voice was powerful and old, with a strange distorted echo to it.

"Wait... I know that voice... Kamen Rider Evol?!" Sougo blinked

"In a way. You could call me his son." the figure said with a dramatic bow before he stood tall "So... Shall we start this slaughter?" he clearly smirked

"Slaughter?" Sougo asked in worry before he widened, he and Shinnouske jumping back as the Rider attacked them

"This isn't good." Shinnouske hissed, doing his best to deflect the punches and kicks of the dark rider. Throwing some basic punches of his own and using his arms to block the attacks

"Yeah! This guy is going to wreck the entire lab!" Sougo added, using some powerful and well-practised martial arts moves to backflip and dodge Blood Build's attacks. He even jumped and twisted his body, doing a corkscrew spin in the air, before rolling backwards over a tossed over desk.

Eventually, the two heroes backed up and got enough space, Sougo pulling out a watch similar to the one he had earlier. This one was black based, however, with a whore dial and button. The number on the bottom read '2018' and the symbol in top were a few lines which, in katakana, could be read as 'Kamen'. He twisted the dial, making the faceplate rotate until it showed a white mask with pink katakana for eyes which read 'Rider'. Gripping the watch tightly Sougo presser the button on top.

ZI-O!

The young man then inserted the watch into the right side of his belt before he pressed the button on top of it which made the centre dislocate and be held by gravity, the right side of the belt having tilted down lightly.

Meanwhile, Shinnouske pulled a small red toy car out from his coat. He gripped the car tightly, his thumb pressing on the back of the car. Said back, flipped around with a good amount of force, spinning around so the car was now in a rough 7 shape. In the raised and rotated back of the car was a silver symbol, an R with a circle around it holding the car tightly, Shinnouske slammed the car onto his left wrist-mounted stick shift looking device.

Both Shinnosuke and Sougo readied their poses; Sougo moving his right arm behind his shifted right side while his left hand was perpendicular to his belt's tilted downward area, while a holographic series of analogue clocks and gears appeared behind him. Shinnosuke had his left wrist lowered down at an angle while his right hand was near his head, aiming at the wrist mount.

"Henshin!" Both Sougo and Shinnosuke called out; Sougo swiping his hand down, which spun the Driver on his waist 360 degrees until it landed flatly on his waist. Shinnosuke's hand gripped the car and pushed it forward, acting like a shift with a couple of clicks before sitting it back on its platform.

Sougo's see-through holographic clocks span around with the clock hands landing on 10 and 2 as pink Katakana lettering appeared and shot out of the face as silver watch-straps surrounded Sougo, armouring him with black armour a silver watch-strap crotch-guard, boots and gloves, his helmet was a white clock-face with two clock-hands pointing at 10 and 2 acting like antennae.

RIDER TIME!

KAME~N RI~DER ZI-O~!

Shinnosuke was covered in a red tire tread circle before it summoned red armour and 'clanged' onto him, forming a black body-suited red rider armour with a silver-faceplate and headlight styled eyes with a car's spoiler on his helmet. A black tire shot out of the Tridoron car and attached itself onto Shinnosuke's body, tilted between his left shoulder to the right side of his waist.

DRIVE! TYPE: SPEED!

"Ah~! Kamen Riders!" Blood Build laughed as he pulled a weapon out from behind his back

DRILLCRUSHER!

It was a black-handled weapon with a series of gauges and pipes. The tip of the weapon, acting like a sword black, was a silver drill with a yellow tip.

"Where did you get that weapon?" Sougo inquired angrily as he saw it, only to be met with immediate attacks by 'Blood Build', barely dodging out the way.

"Foundation X made it. Rather handy!" Blood Build called, stabbing with the drill blade

"ARGH!" Sougo's body sparked as he was struck with the DrillCrusher.

"Zi-O!" Shinnosuke called out, punching Blood Build in the face.

He quickly summoned two weapons, which came flying out of his car. One was a sword... With a steering wheel in front. The other was a gun... Made out of a car door "HandleKen! DoorJyu!" he called, gripping both weapons.

Shinnosuke slashed at Blood Build at close range, but the blows seemed to do little to no damage even with Shinnosuke's force of attacks. "What?" Kamen Rider Drive blinked before he opened fire, shooting from his door gun point-blank.

Sparks came from Blood Build's armour but he was clearly unharmed "You done yet?" he asked before he slapped Drive away.

"Gah!" Shinnouske hissed in pain.

"Detective Tomari!" Sougo gasped in horror before he pulled out a new watch. This watch was purple based with a green button and dial, the number on the bottom reading '2009' while the top had a W symbol. This was the Double RideWatch. He gripped the watch tightly and pressed the button atop it

DOUBLE!

"Huh?" Blood Build asked as he heard the voice.

Sougo slid the RideWatch into the empty slot, pressing the button on top of his belt and spun it again, activating its power.

RIDER TIME!

KAME~N RI~DER ZI-O~!

ARMOUR TIME!

Summoning before Sougo in a gale of green and purple wind were a pair of humanoid cybernetic figures; the right one was green with yellow markings and a stylised 'C' in the shape of the wind, the left was black with purple markings with a stylised 'J' with jagged curves. The two summoned figures leapt and struck Blood Build quickly, causing some small sparks on his person, before leaping back when they were about to be struck.

CYCLONE! JOKER! DOUBLE~!

The two cybernetic figures reconfigured themselves into large USB sticks and attached themselves to Sougo's body, changing the pink Katakana wording from 'Rider' to 'Double'. The armour mirrored itself, the green and black formed the letter 'W' on his chest with a silver stripe down from his helmet to his chest.

Sougo ran at Blood Build with his 'Joker Side', hoping that the force would be enough to smack the DrillCrusher away, before going in with a sweeping kick. Blood Build stumbled back, flicking his wrist in pain before Sougo quickly followed up with a punch from his green Cyclone arm.

"The kid has the right idea." Shinnouske smirked as he pulled out a bulky car. He twisted the ignition once more, pulling out the Speed car and switching it with the new one before he pulled the lever mode car.

DRIVE! TYPE: WILD!

Shinnosuke's armour drastically changed, instead of being black body-suited with red armour, he now had a silver-white body-suit with black armour that looked like a police cruiser; black boots, shin, arm and thigh guards, his chest-plate looked like the bonnet of a police car with blue and red siren lights, a black helmet with silver headlight eyes and mouth plate with a bulkier tire on his right-hand shoulder.

Shinnosuke ran in and continued the attacks along with Sougo, keeping his junior Rider partner safe. He rushed forth and hit Blood Build with a shoulder attack, the tire digging into the red armour.

"Darn it!" Blood Build hissed, the two basically pushing against each other

Sougo quickly pulled out a different RideWatch, a red one with a golden dial and button

KUUGA!

"Chou Henshin!" Sougo called after he plugged the RideWatch into his belt while removing the Double Watch. He posed lightly before he span the belt, the Double Armour fading from his form as a new set of armour appeared before him

"No, you don't!" Blood Build hissed as he managed to swerve around Drive and rushed forwards, slashing with his drill blade. The attack, however, was blocked by a floating armoured forearm. A second one then appeared and rushed forwards, punching Blood Build back

ARMOUR TIME! KUUGA~!

The armour flew off and attached itself to Sougo, silver and black leg and kneecap armour, silver torso armour with red chest-plate pieces, red shoulder-guards and bracers with silver gloved hands. Finally the helmet, it was solid silver with the golden stag-beetle crest that adorned Kuuga's helm and the Katakana in Sougo's visor spelt out 'Kuuga'!

Sougo took his pose once more, golden sparks going all over his armour but he didn't notice

"Tch." Blood Build snarled as he pulled the strange bottle from his belt, inserting it into his weapon. Suddenly the drill came to life, spinning like a tornado as it glowed brightly

VOLTECK BREAK!

"HA!" Blood Build roared as he slashed, sending an energy shockwave towards Sougo with some 'blood' dripping from the drill

Sougo's eyes widened as he raised his arms, blocking the attack as he skidded back from the attack "GAH!" he yelled in pain, grinding his feet into the ground to stop himself from being sent flying as explosions went off all around him

"Darn it!" Shinnouske frowned as he reached down and flicked the ignition switch once again. He then gripped the Type Wild car from the Shift Brace and inserted it into the DoorJyu

HISSATSU! WILD! FULL THROTTLE!

Purple energy quickly gathered around the barrel as Drive took aim, pulling the trigger. A large burst of energy in the form of a large black muscle car came shooting out, racing at Blood Build and hitting him in the back.

The evil Rider yelled as his own attack was stopped, being sent flying into the air via explosions.

Sougo panted as he fell to his knees, the golden lightning continuing to spark around his armour 'What's going on?' he thought, finding it hard to move.

"Are you alright?" Shinnosuke asked as he helped Sougo up.

"Just. Confused. Who is that guy?" He responded, getting back to his feet.

"No idea."

"... Ha! You really are tough!" Blood Build laughed as he stood up like he wasn't even hurt, red mist pouring out of his suit "Looks like I have to start trying." as he said that he reached down to the wrench on his belt, pushing it down harshly

The pistons that were either side of the bottle in his belt came shooting forwards, 'crushing' the bottle as it glowed and bubbled. The tank on the other side of the belt glowed an ominous red as a sinister voice echoed through the air

BLOOD FINISH!

The Dark Rider jumped into the air, the red mist filling the room

Sougo and Shinnouske acted quickly, trying to retaliate, only to find they couldn't move. The mist had somehow semi-solidified, forming liquid-like chains holding them still

"Damn... it!" Shinnouske hissed, the two looking up to see the dark Kamen Rider racing towards them for his finisher

Blood Build rocketed towards them, ready for his impact to destroy the two Riders. Only for a loud sound and large blast to divert the attack away from them.

BREAST CANNON!

"Huh?" Blood Build blinked before he was sent flying, crashing through a wall hard by a massive blast of red energy

"Who... was that?" Sougo gasped as the chains disappeared, reverting to his base form as the Kuuga Watch fell to the floor. Golden sparks covered it for a few short moments, for a moment the gold and red swapped places before it reverted to normal.

Coming from the dust came a different Kamen Rider. Red and gold body-armoured, wearing a silver with a blue tube, blue spheres on his golden shin-guards, elbows and inside its golden chest-piece. He had jutting-out silver weaponry, like back-wings, a strange gun and armoured claw; silver heavy-made shoulder-pads and a golden chinned, silver mask with a curved solid black visor.

The man looked at both Shinnosuke and Sento before turning to Blood Build, seeing the monstrous Rider getting out of his crater.

"Ow... who are you?" Blood Build glared

"Kamen Rider." The figure spoke, aiming his gun arm at Blood Build. "Rebirth!" And fired upon Blood Build, giving both Shinnosuke and Sougo time to get out of the way.

Blood Build frowned... and just seemed to teleport as he dodged the blast "Darn, I wasn't expecting to deal with another. Oh well, I already have what I want. Ciao~" he waved and teleported away, disappearing

Both Shinnosuke and Sougo got up and looked at this new Kamen Rider. "Who are you?" Shinnosuke inquired.

"And are you our enemy?" Sougo followed up.

"'Enemy'? Heck no." Rebirth answered. "I'm just helping out a fellow employee."

He reached down and removed a silver coin, a Cell medal, from his belt as his transformation vanished in a flash of golden light

As the light disappeared, an older gentleman was revealed, wearing a black jacket-vest, white shirt and blue jeans, short cut black hair and a goatee and a smile on his face. "I'm Akira Date. I work for Mr Kougami."

"You work with him too?" Sougo asked as the situation was diffused, letting himself and Shinnosuke de-transform themselves.

"Yeah, several years now." Date nodded.

Sougo realised that this man was his superior and bowed respectfully.

"Hey hey, no need to be like that!" Date laughed

"You worked with Eiji, right?" Shinnosuke asked

"That's right. I was 'Kamen Rider Birth' for a time." Date responded, pointing to himself with his thumb, as Sougo raised his head. "Before my underling took over for me."

"I guess Mr Kougami must respect you if you're here to help." Sougo commented

"Yeah. Too bad we were too late dealing with this guy." Date said sadly

"Well, you're here now. And that's the important part." Shinnosuke answered. "...You think Mr Kougami can float the destruction bill?" He pointed to the destruction.

Date chuckled gently. "He's rich enough and his construction team will fix the damage." He crossed his arms a moment later, letting out a deep breath "Unfortunately... this lunatic's friends stole something important."

"You mean 'Foundation X'." Shinnosuke responded

"What did they steal? Could we get it back?" Sougo asked

"Sure we can get it back." Date nodded "They stole an experimental energy generator."

Shinnosuke cupped his chin and began to ponder. "I'm guessing this 'energy generator' packs quite a punch?"

"I guess, I've never seen it personally. I've just heard it from the boss." Date answered, "But from what I do know is it is meant to power entire countries for years at a time before being replaced."

"That's insane!" Sougo exclaimed.

"... And who was that Blood Build?" Shinnouske frowned

"Well. You're not going to like it." Date frowned as he was about to reveal his identity.

*Elsewhere*

We arrive back in the secret location of one of Foundation X's hideouts. Where Blood Build had materialised and walked with strutting confidence. "Hello everyone, I believe that went well." Blood Build commented happily as his transformation faded away.

And revealed Sento Kiryu underneath!

"Better than we hoped. However, your performance regarding those Riders was something to be desired." The voice through the speaker responded

"Now now." Sento said, his hair snow white and his eyes red while his voice was still Evolt's "I was playing with them. Having fun! I didn't push my Hazard Level past 4, they weren't worth my time!"

"You should have ended them right there." The voice answered. "We cannot have any variables."

"Please! A baby rider like that? ZI-O is worthless! Unfortunately, those two have some of the last components we need." Sento shot back

"You mean the 'Quartz' he possesses." The voice responded, annoyed that Sento was correct.

"And the Core Drivers, yes." Sento nodded

"Can you acquire them?" The voice asked.

"Of course. I'm a Genius after all." Sento smirked before he started laughing evilly

*with the others*

Sougo, Shinnosuke and Date were currently in Mr Kougami's office, being informed and keeping him up to date what was going on. All things considered, even what had just happened, he was none the worse for wear. He was even working on his latest cake.

"Well. I do believe that your little group will need some assistance in this fight." the cake boss commented, pointing towards a door "May I introduce, from ZECT, Mr Kagami also known as Kamen Rider Gatack!"

Walking in was a man wearing a white button shirt under a black suit and trousers, dark hair and eyes with a sense of 'age' to him; like he had been fighting for a long time. "Thanks for the introduction, Mr Kougami. Though it was unneeded." Mr Kagami responded. "Please, call me 'Arata' if you want."

Sougo stood up and bowed respectfully to his Senior Rider. "Nice to meet you sir. I'm, Sougo Tokiwa. Kamen Rider Zi-O."

"'Zi-O? Oh, the 'King-Boy' Souji told me about." Arata answered

"Souji? You know him?" Sougo gasped

"Yes, I was his secondary rider." he nodded cheerfully "While Tendou can be very arrogant and self-focused, he is my friend."

"'King Boy'?" Date asked as he looked at Sougo.

"It's a whole thing, Mr Date." Sougo responded, trying to divert the whole thing.

"We're working on a lead that ties back to Foundation X. We're hoping that you'll assist us, Mr Kagami." Shinnosuke asked.

"I have been tracking Foundation X's movements for months, ever since they stole the new Hyper Zecter from the reformed ZECT." Arata nodded "I believe I know where they are hiding."

"Really? That's fantastic." Shinnosuke answered. "Wait, 'Hyper Zecter'? The Drivers that you and Souji use?"

"Yes... and no." he sighed "We use Zecter's transform. Like the Kabuto Zecter, Zabee Zecter, Gattack Zecter and so on. However, the Hyper Zecter is... more. It is an enhancement Zecter, you use it when you are already transformed in order to evolve into a higher state."

"Basically it is a power-up." Date explained, working out Arata's logic

"Like...My RideWatches that have the powers of the other Riders." Sougo worked out. "I got it."

"Good." Date nodded.

"So, can you lead us where they might be?" Shinnosuke asked

Arata pulled out a large map and set it on the table, pointing at a spot harshly "Right there." He said simply, it was a newly constructed part of town owned by a private company "They have moved location a few times but this is most likely where they are today, right now. It is also off the grid by if you look up inferred data and other spectrums, it is giving off way too much heat and electromagnetic energy."

"Meaning it's as good a place as any to hole up and conduct experiments." Shinnosuke agreed, fixing his tie.

"Let's go and get paid." Date nodded, flipping a Cell Medal and catching it

The Riders nodded and headed out. "Oh, Mr Kougami. One thing I'd like to ask." Sougo asked before they headed out.

"Anything my boy." Mr Kougami asked, while holding the bowl and whisk in his hands.

*Elsewhere*

Date had inserted a Cell medal into a RideVendor, preparing to mount his bike, as Shinnouske opened the Tridron and Arata was getting his own bike ready... when they all heard footsteps.

They all quickly looked up and saw... Sento?!

The genius was limping, bruised and hurt as he was moving towards them.

"SENTO!" Shinnouske yelled and rushed forwards, catching the physicist. "Sento? What's happened? We were just coming to get you!"

Sento wheezed heavily, almost fading in and out of consciousness.

The other two senior riders quickly rushed over... and that is when an evil grin spread over Sento's face

His hair now suddenly white he sprung to his full height as he performed a high kick which sent Shinnouske crashing down to the ground. He slammed his foot against Shinnouske's neck, forcing the two other Rider's to stay where they were.

"You are all too easy to fool." Sento said, his voice once again Evolt's, as he swung a larger than normal Shift Car in his hand. He hummed, slipping the trinket into his coat pocket before he jumped back.

He had barely dodged a Taka Candroid, his coat fluttering dramatically around him as the robotic bird cut his cheek slightly.

Shinnouske took a deep breath as he rolled over, coughing as air once again entered his lungs. At the same time, Arata and Date were suddenly at his side, helping him to his feet.

"Sento. What happened rabbit-man?" Date asked

"Not much, you simple-minded fool. Foundation X just showed me what I could really do with my power, as well as the Evolt genes in my blood. The genes Evolt originally planted in me to allow me to transform." Sento explained as he backed up "Accelerating their growth and helping me evolve into a second Evolt, so I may help carry our Foundation X's plan!" as he said that he pulled the driver from his waist and attached it.

SCLASH DRIVER!

"Now. To eliminate you." He hissed darkly, pulling out a black Bottle. He gripped it tightly, twisting the cap.

EVOL!

The bottle began to glow red as the cap was straitened. With a smooth motion, he twisted the bottle one-eighty and slammed it into his belt.

BLOOD RABBIT!

Bubbles appeared in the bottle as a dark, foreboding tune began to play. Around Sento, a massive experiment beaker formed and was quickly filled with a red-ish liquid. Around that and him was a few glowing golden... gears of some sort, spinning and twisting. Sento pointed with his free hand, much like he did when he normally transformed, as that evil grin stayed on his face.

Then his eyes flashed red.

"Hen~. Shin~." He said, almost tauntingly slowly, before he gripped the wrench on his driver and violently slammed it down

TSUBURERU! NAGAREUR! AFUREDERU! BLOOD RABBIT IN BUILD! BRAAAA!

MWHA-HA-HA-HA!

The experimental beaker twisted around Sento, transforming him into his blackish-red body-suit with the red 'jelly' splattering around him, turning him into Kamen Rider 'Blood Build'.

"Oh hell." Date's eyes widened in shock as he saw him.

"Let's go Mr Belt. Someone has messed with his head." Shinnouske frowned, attaching the living belt

"OK Shinnouske!" Krim Steinbelt commented

Arata frowned as he pulled back his jacket, revealing a fancy silver 'plate' belt

Arata reached into his pocket and brought out a blue robotic stag-beetle and attached it to his waist. Sento was just laughing as he saw all of them ready to transform...to which he humoured them.

Date meanwhile pulled his belt out, with a flip of his wrist he attached it around his waist

Shinnouske grabbed a small red car which seemed to have an inbuilt white motorcycle connected to it, it looked like a fancy sidecar. He flicked it closed, showing a D symbol, as he flicked the Ignition Switch

"HENSHIN!" The three yelled

Kagami gripped the stag beetle tightly and slammed it onto his belt

HENSHIN!

Shinnouske slammed the small car into his wrist brace

DRIVE! TYPE: DEADHEAT!

And finally Date inserted a Cell Medal into the side of his belt, turning the dial

POP

The three were surrounded with their respective forms of energy transformations. Date was surrounded in a green data-mesh bubble; which transformed him into Kamen Rider Rebirth.

Arata was being encased in multitudes of silver hexagons which formed into a black body-suited rider with silver armour, a deep blue chest-piece, shoulders and mask.

And finally, Shinnosuke was wrapped in a white bodysuit, like Mach's, only with his red armour, a black tire with red and white stripes on the tread, a small black 'wheel gauge' on his right shoulder and a red helmet with silver headlights and white markings.

"Cast off!" Arata called out as he 'opened out' his stag beetle's pincers, causing yellow lightning to spark over him and open up his weighted armour and pulled back the pincers to the main body of the beetle.

CAST OFF! CHANGE STAG BEETLE!

Arata was now wearing the same black body-suit with silver armour, but now the heavy and bulky weight was off, turning him into a slimmer and lighter blue armour wearing Kamen Rider with a stag-beetle styled helmet with red visor lenses.

Clap, clap, clap.

"Oh, bravo. You got a new friend." Blood Build sarcastically remarked. "Well. At least I can go a bit further now."

Suddenly red steam began to pour out of his body once again "Hazard Level five." he hissed before he drew the DrillCrusher and rushed forwards

"'Hazard' what?" Date asked before the three Riders began their fight against Sento. Even though he was their friend, they had to see him as their enemy now. Seeing him as anything else would be a major problem.

Right now he was an enemy they had to fight.

"GRAH!" Drive roared, red energy pouring from his body as he rushed forwards.

The three Riders tried to push back and fight, feeling the intense strength that he was exuding; but whatever Sento was on about, was making him stronger, making their feet drag into the ground. Blood Build and Drive's fists met, the two hitting as hard as they could as red energy span around them.

"Can't you hit them?" Date asked Arata.

"With what? I might hit Drive!" Arata answered as the red energy was like a vortex.

"Err... don't stop time?"

"No, it's technically super speed." Gattack countered "It is basically the suit pushing itself to near the speed of light, making it seem like we pause time. There is a slight distortion of time, but it isn't stopping it." Gattack countered "Meaning being touched by that energy would still hurt me."

"Oh, now you tell me!" Date groaned

Inside the vortex, both Drive and Blood Build were pushing each other to their respective max, throwing punches each other way as they fought each other.

Finally, the two hit each other as hard as they could, the two being sent flying back.

Blood Build laughed as he brushed himself off, seeing Shinnosuke winded and wounded from their last battle. "Good. Very good, Drive."

Clock Up

CLOCK UP!

Gatack activated his powers and ran at Blood Build with intense speed, thinking he could get a few clean shots in before he could retaliate. He had drawn the blades from his shoulders, slashing hard and fast from every direction.

Blood Build was sparking from each and every side, almost lighting up like a festive tree with each hit Gatack was throwing at him before he rolled into the ground and in pain.

CLOCK OVER!

Blood Build yelled, throwing back and rolling across the ground.

"Okay, that's good." Date commented as he saw that.

DRILL ARM!

"My turn!" He spoke and ran at Blood Build

"Ha!" Blood Build laughed, gripping his weapon before the two drills clashed

"Damn it!"

"You need to do better 'Old Generation'!" Blood Build responded and slashed at him.

VOLTECK BREAK!

Blood Build gave a powerful upwards slash, sending Kamen Rider Rebirth flying back

"ALL OF YOU JUST DISAPPEAR! BWAHAHAHAHAH!" Blood Build laughed... and felt blades stab into his sides "GAH! W-What?" he hissed. He looked down... and saw Gattack's blades on his sides

Gattack had combined the blades, basically turning them into a pair of scissors. The senior rider roared as he lifted him into the air, yellow electricity sparking up his body and into his blades

"Rider Cutting!" he ordered

RIDER CUTTING!

"BWAAAAHHH!" Blood Build yelled as there was an explosion, the dark Rider being sent flying

1! 2! 3!

"Rider Kick!" Arata yelled, having quickly pressed the yellow button on the Gattack Zecter three times before closing it. He pulled the horns open once more, yellow lightning surging back down to his foot. He jumped into the air, giving an axe kick

RIDER KICK!

His foot collided with Blood Build, sending them both crashing through several concrete pillars in the car park. After crashing, Gattack rolled across the ground before he caught himself

"Mr Belt... I can't hold Deadheat for much longer! Let's finish this!" Shinnouske called

"OK, Shinnouske! Top Gear and save Sento!" Krim agreed

Shinnouske twisted the key of his Driver, hitting the red button on the ShiftBrace

DEADHEAT!

With red energy pouring out of him, Shinnouske jumped into the air and came rushing down like a blazing comment

BLOOD FINISH!

Blood Build had quickly hit the wrench on his belt, spinning one hundred and eighty before slamming his glowing red foot out in a kick. The two collided... And the explosion sent them both flying back, Shinnouske losing his transformation

"Shinnousk-" Arata yelled before he was hit hard by a glowing red fist in the gut

"Let's see how you like it." he hissed, Blood Build pressing the wrench on his belt down twice

RABBIT BREAK!

Suddenly both hands of Blood Build were glowing red, and Sento started throwing a series of rapid punches. He was like a human machine-gun, punching faster and faster and faster until he gave one last solid punch that sent Arata flying away.

His rider form faded as he crashed to the floor, coughing

"And that leaves one." Blood Build hissed

CELL BURST!

Blood Build was then hit by a massive wave of green energy, one he was expecting but underestimating. He held it back using the DrillCrusher, having drawn it at the last moment.

Rebirth was gripping the Breast Cannon's handles tightly... Before he grinned. Suddenly the energy blast ended and Date was gone

"What?!" Blood Build hissed as he stumbled forwards... Before he was wrapped up in a rope and pulled back harshly. He was pulled in to the air backwards and slammed into a drill. He yelled in pain, his armour screeching at the attack before he was kicked away.

"And this one fights back!" Date panted as he landed

Blood Build was seething, his form sparking and glitching for a few moments "I... Will kill you!" he hissed. However as he stood up, two Riders were blocking his way

It was ZI-O and another Rider

"Sento! Stop this!" Sougo called

Next to Sougo was a green body-suited, golden marked Kamen Rider. His boots and shins were covered with silver plates, his arms had silver lengthy bracers, large green pauldrons with gold markings and red lines, his chest-plate was in the shape of a heart with red markings that looked like a heart but sectioned to look like an 'E' and a '3'. His helmet had a silver mouth-guard with a green helm with silver antennae and red eyes that were also in the shape of a heart. This was Kamen Rider Chalice.

"Ah, if it isn't the baby Rider." Blood Build mocked

"Sento! They are messing with your mind! Let us help!" Sougo called. Blood Build stumbled back, holding his head as he groaned

"Sou... Go?" Sento's voice came from Blood Build

"Yes Sento! It's me! You can break free!" Sougo nodded

...

"You're so gullible!" Blood Build laughed as he opened fire on the Rider

Tornado

Chalice quickly slotted a card through his belt, launching a small tornado forwards to block the shots "You can't get through to him like that Sougo. We have to destroy whatever is controlling him." Chalice commented

"You're right Hajime. I was just hoping it would have worked." Sougo sighed as he pulled out a new watch, a blue one with a silver dial and button. The top symbol was that of the spade suit of cards while the number on the bottom was 2004. He quickly shifted the dial and pressed the button on top

BLADE!

Sougo slotted the watch into place, spinning his belt

ARMOUR TIME! TURN UP! BLA~DE~

A glowing blue playing card shot out of the belt and passed over Sougo, changing his form as new armour appeared over his form. His shins were light grey armour, pale blue kneecap guards, dark blue and light grey thigh-guards, black waist armour pale blue-grey armour and grey sectioned armour on his torso, his arms were covered in grey almost block-like armour, his shoulders had red-backed cards displayed in a fan and held by a silver and blue clasp. His helmet was large and silver-pointed, like Blade's helmet. The pink Katakana lettering in his visor spelt out 'Blade'.

Kamen Rider ZI-O Blade Armour stood ready, holding the JikanGlaide in his hand... And some more golden sparks appeared over his form

"Sento... We will save you!" Sougo roared as he and Chalice raved forwards, slashing with their blades

"They took their time." Date moaned in pain as he let his transformation cancel "I'm out of practice."

"Me too." Arata admitted

"Should have used Formula." Shinnouske berated himself

Sougo and Chalice were hard at work slashing at Blood Build, but those golden sparks had not left Sougo's form. And he was finding it harder and harder to move.

Both Chalice and Sougo continued to slash and hit Blood Build, trying to get through to Sento's true self and out of the control of the 'Evol Rabbit' form that he was in.

"Grr... Fine. Come to the base, I don't have time for dealing with you and Mr Undead here." Blood Build as he quickly hit the wrench on his belt three times

BLOOD RABBIT OVERFLOW!

Blood Build jumped and gave a few simple side kicks, shooting shockwaves from his feet. The two raised their arms, explosions going off around them but not hitting. Eventually the explosions and smoke faded... With Blood Build gone.

"Darn it... Gah!" Sougo frowned before he yelled in pain, falling to his knees as his body kept sparking

"Sougo! What's happening?" Chalice asked in shock as he saw Sougo sparking so much; like his powers were fritzing and glitching out.

"I don't know." Sougo hissed. For a moment it looked like he had wings as the form of Blade Jack form appeared over him in less than a second before Sougo gasped and detransformed, the Blade watch falling to the ground. Its grey faceplate and button turning gold before it faded. "Is everyone else okay?"

"More or less." Shinnosuke answered, rubbing his chest.

Chalice nodded as he let his transformation fade, revealing the man under the armour

It was a brown-haired man, wearing a beige jacket and white button shirt, brown trousers and black shoes. "Hajime?" Arata asked as he saw him.

"Kagami." he nodded

"Sento... We will save you!" Sougo promised, gripping the Build watch tightly as it sparked with red, blue and black electricity

*Foundation X*

We find Misora in a cell, sitting in a bench with handcuffs in her hands "Vernage... I wish you were here." Misora whispered sadly

"Oh~, missing your dead Martian friend, Misora?" Sento spoke condescendingly as he approached her cell.

"Yes. Because she would snap you out of this Sento!" she frowned

Sento chuckled darkly. "Maybe. But I'm smarter than most of the people here in this building."

...

"And the most egotistical." Misora smiled

Sento's smile turned sour as he heard that, being called 'egotistical' stung. "Well, I just hope you enjoy your new home." as Sento turned around, walking away, Misora's smile turned wider and more confident

"For Love and Peace, right Sento?" she muttered with a smile

Sento entered a large, expansive lab where several Foundation X scientists where working. In a series of containers where the items stolen so far.

In one container was a stack of playing cards, all of the diamond suit, from the ace to the King. In another was an identical stack of cards for the club suit

In another container was the Shift Trideron shift car.

In another was a small and strange silver mechanical beetle

And in the middle of the room... Was Pandora's box

"Have you made any progress on this?" Sento asked with a sting in his voice.

"Don't take a tone with me, Sento." the person in charge commented, revealing a woman who approached Sento with a clip board and a frown. She had tied back dyed dark-blonde hair, wearing a black shirt under a white lab coat and heels.

"Sorry, 'Doctor'." Sento responded with a roll of his eyes. "But progress is going well, right?"

"Of course. The gateway that goes beyond physics is nearly complete, with your help Foundation X will soon rule the world!" she said confidently before she raised a small black and white gauge looking device "As well as... This."

"You made an Evol Trigger?!" Sento gasped... And his hair shot up in a small tuft

"Why yes, yes we did." she commented, snickering at his hair tuff "That quirk of yours is still entertaining and adorable, Mr Kiryu. Like a baby bunny." she mocked, flicking the sticking up strands of white hair

Sento's hand twitched and scratched his head, trying to flatten it, doing his natural tic. "I am not a 'Baby Bunny'." He growled

"As you say." she commented, walking away and gesturing him to follow "Once you have fully synced with your new Evolt genes, this Trigger will complete your evolution. Blood Build Black Hole Form. And with you, Foundation X shall complete it's plans! I assure all Riders besides ZI-O are now dead, correct?"

"...Define 'dead'." Sento responded.

"They're still alive?!" She snapped at him.

"There was unexpected interference." He argued back "I had the Core Driver we needed and they will be coming to us either way, I can defeat them!"

The scientist glared and soon backed off. "Fine. At least you have it."

She reached up and gripped his coat, pulling their lips close "You may be handsome Mr Kiryu, but even an asset like you can be replaced if need be. Do not fail again." she hissed

"Understood." he nodded...

And then sirens went off

"The Riders are approaching!" a scientist yelled

"Damn it." The woman scientist glared. "Sort this out. Now!" She instructed him.

The scientist nodded and got to work

"And you, Sento." She spoke, turning to him.

"I know." Sento responded, grabbing his Sclash Driver.

*outside*

The group of five Rider's where racing towards the Foundation X facility, all but Shinnouske on their bikes... he was in his car

It almost looked like the four other riders where protection go the fancy cop car

As they neared the facility they noticed a bunch of robots guarding the facility

"X Guardians." Date commented "Eiji told me about them from when he teamed up with Build and Ex-Aid. Just hit them really, really hard. Henshin."

Pop!

"Seems easy enough." Arata commented as he caught the Gattack Zecter "Henshin. Cast Off." he called

HENSHIN!

CAST OFF!

Unlike last time, it wasn't his armour that was launched from his body. No. This time, Gattack stayed in his Rider Form... And his BIKE was the one which 'cast off'. The bike quickly unfolded and turned into a hover board

"Then let's do this. Henshin." Hajime commented, swiping a card through his belt

Change

Both Sougo and Shinnosuke were in the car, their position made it difficult for them to transform, but they were ready as they stepped out. Well, Shinnouske did it fairly easy. His Rider powers where basically made for this sort of thing.

Sougo's...well, how could you spin a belt when you're sitting down?

"Does everyone know the plan?" Shinnosuke asked as they got into position.

"Right."

"We go in, fix Sougo and stop Foundation X before they enact their plan." Shinnosuke informed

"The last two not necessarily in that order." Hajime commented as they were ready for a fight.

However as they neared the facility they noticed it... A small army of revived monsters

"Of course they wouldn't make this easy." Date rolled his eyes.

"Shinnosuke, let's use a different Shift Car this time." Mr Belt spoke as the group came to a stop.

"What have you got in mind?"

"Since Tridoron was stolen from us, we will have to use Formula for the next best option." Mr Belt suggested.

"My thoughts exactly. My brain is in Top Gear." Shinnouske nodded

Shinnosuke replaced his Speed Shift Car and replaced it with a blue racecar and inserted it into his brace.

DRIVE! TYPE: FORMULA!

Shinnosuke's whole armour changed from red to blue, his shin and arm guards turned blue with small black tires with a thin yellow line in the centre; a blue and white formula car's bonnet as his chest piece, trademark stickers depicting the various Shift Cars on his armour. And finally a yellow helmet with blue spoilers and black visor lenses.

Sougo had transformed into Zi-O right as Shinnosuke had transformed himself to save time.

He got onto his RideStriker, nodding at the others. They nodded back.

The four senior riders for ready for battle as Sougo raced inside the building.

'Come on, Sento. Where are you?' Sougo thought as he drove, speeding through the empty hallways until they lead him to a large room...where Sento was waiting.

"Ah! Hey brat!" Sento laughed

"Mr Sento, I'm here to stop you." Sougo called out, glaring at him. "You can't let this happen. You can't let these people win!"

"You stupid child! You think I don't want this?!" Sento laughed as he raised the bottle, twisting it

EVOL!

"I am going to have the power beyond physics! Beyond our current understanding! I will learn things only gods knew before!" The evil Sento laughed madly

BLOOD RABBIT!

"You can't think that. Not really." Sougo frowned as he pulled out a larger than normal pink RideWatch

D-D-DECADE!

"Believe why you want. But this time there will be no escape." Sento hissed "Henshin."

TSUBURERU! NAGAREUR! AFUREDERU! BLOOD RABBIT IN BUILD! BRAAAA!

MWHA-HA-HA-HA!

In a flash and splash of Red, Sento had transformed into Blood Build "Now come, boy! Just TRY and stop me!"

"No. Save you. Henshin!" Sougo called, slotting the RideWatch into place... And as the belt span and locked into its normal position, Sougo slammed a second RideWatch onto the Decade watch

BUILD!

ARMOUR TIME! KAMEN RIDE! WOW! DECADE! DECADE! DECA~DE!

A series of ghost like figures flew through the air, attaching to Sougo's form and solidifying. Sougo's armour was probably the bulkiest yet, black boots, dark grey armour for his legs, magenta lines from his shins and front, a magenta and black bodysuit with the silver watch strap on his torso. His arms were clad with silver and magenta arm guards, silver armoured gloves with magenta guards. The Decade cross on Sougo's shoulders and chest depicted the Katakana for the word 'Decade' on his right shoulder, while a white barcode was on the main part of the cross with the numbers '2009' and '453145' underneath. And finally, Sougo's helmet was more like a square visor, reminiscent of Decade's form with green katakana for 'Decade' on his magenta face.

However after a moment the form changed instantly.

FINAL FORM TIME: B-B-BUILD!

The suit from the cross down seemed to digitise for a moment before it solidified, revealing a new suit while the barcode and words in his chest changed. 'Decade' turned into 'Build' and numbers on his chest became 'Sparkling', all in katakana. The 'face tablet' changed from the picture it originally had to the face or a red and blue helmet, a rabbit and tank being used as eyes. The armour from his chest down was made of diagonal lines of red and blue with white highlights, looking jagged like lightning with some white 'bubbles'

"You think using those powers will stop me?!" Blood Build mocked

"No. I believe they will give me the strength to fight you." Sougo said as he raised a sword

RIDE HEISABER!

'Please. Let this work.' he thought

*outside*

Date, Arata, Hajime and Shinnosuke continued to put up a fierce fight against the revived Rider monsters, seeing how strong they had gotten despite Foundation X using their resources to make their revived monsters just as powerful to match them.

The Riders had all split up, taking on the massive army of robots... While, at the same time, fighting the revived monsters

Arata Kagami, Kamen Rider Gattack, was still in his Masked Form. He rode his bike turned hover-board while blasting from his shoulder cannons

Arifureta keshiki ni totsuzen arawareru

Mou hitori no jibun yukkuri aruite kuru

"We are not going to fall to you!" He frowned, flicking the horns on his beetle slightly. The armour in his suit extending softly. He jumped down, leaving his hover-board to cut through several robots and stab into the side of a building

Tomadou hima mo naku mahiru no yume ja naku

Deatta shunkan ni higeki nara hajimatte 'ru

"Cast Off!"

CAST OFF! CHANGE: STAG BEETLE!

The bulky armour exploded, Gattack timing it so the armour blasted off before he landed. As the horns of his helmet snapped into place, the monsters were only just recovering... And the warrior of ZECT was already slashing with his swords

Kimi wa yuiitsu no dare mo kawarenai

Tokubetsu na sonzai sa mayowanaide tatakau toki

He was a series of blades, yellow lightning sparking through every monster within reach. He thinks he saw Yummy's, Ives, Ganma and Worms. He eventually combined the weapons, stabbing what he knew was a Zodiarts General around the waist "Rider Cutting!"

RIDER CUTTING!

With a powerful squeeze, he bisected the monster, making it explode

FULL FORCE Kinou yori hayaku hashiru no ga jouken

Jibun no genkai itsumo nukisatte iku no sa

"Alright then." Arata panted as he pulled himself to his feet, his fists clenching before he rushed forwards "I'm not going to let organisations like the old ZECT to control the world... For evil to hurt everyone! Clock Up!"

CLOCK UP!

FULL FORCE Donna toki ni demo tsuyosa to iu jishin

With time frozen he got to work and started his finisher of this, repeatedly slamming the yellow button on his belt and opening and closing the horns

1! 2! 3! RIDER KICK! 1! 2! 3! RIDER KICK! 1! 2! 3! RIDER KICK!

"CHARGE KICK!" Kagami yelled as he jumped into the air, yellow lightning making his foot look like a small yellow sun. He rushed down, destroying a large group of the monsters

Karada wo afuredashitara subete ga chikara ni naru

CLOCK OVER!

Elsewhere in the battlefield, Hajime was slashing with his blade bow

It had been so long for him to fight enemies like this, fighting for his humanity and for the humanity of others. Protecting the world like his best friend, Kazuma.

Tachi tomareba Kieteshimau

Hikari dake wo Oikaketai no sa

He pulled back his bow's launcher and shot repeatedly at the duplicates, keeping the distance between himself and their enemies.

Maboroshi demo Yume demo ii

Chikatsuku hodo Tashikani hibiwareru yo every night

Kotoba dake ga itsumo Daiji ni sareru nara

He pulled two cards from his belt, attaching the Chalice Rouzer into the weapon before slashing his cards through the weapon

Chop! Tornado!

Spinning Wave!

Nodo no kawaki hatashi no ashi

The energy of the cards flowed into the form before he jumped into the air, coming down with a powerful chop that slashed through a few monsters

Sono mama Haruki dasou

Hajime span his weapon lightly, glaring at his foes as he drew several more cards "I promised to protect everyone as you would, Kenzaki. And I will keep that promise." he said seriously

Take it a try

Kanjitetai itami

Float! Drill! Tornado!

Genjitsu wo wasure

Karada mezameru hodo atsuku suru

Spinning Dance!

Take it a try

"Ahhh~" Hajime breathed, black wind surrounding him... Before he jumped into the air

Yurusarenai omoi

Dare nimo iwanai

Hajime was a tornado, a spinning kick that shot through the battlefield... And he could freely control his movement thanks to the power of 'Float'. He was like a guided missile, shooting from foe to foe and demolishing them all before he landed. His heart like visor flashing as he stood before the massive explosion

Torogari tsutsukete

Jibun wo tsukuri ageru

Elsewhere Rebirth was fighting hard

Doushite kokoro ni Shitagawanai?

"Come on come on come on!" Date called and laughed, punching the monsters harshly. He was going harsh, attacking everyone

Akirameru Riyuu nai hazu

Yume no hou ga ore wo Tsukihanashite

He grabbed a monster by the chest, smashing his head into the random monster. It yelled in pain, especially as Date then threw it away

Kiete yuku… Sore wo tada miokutta

"You guys attack my boss' house! Steal from him! I'm gonna kick all of your asses!" Date called, pulling out the BirthBuster and unleashing the barrage of cell medal bullets

Don't look back Oso sugiru

Koto nante nai

CATAPILLAR LEGS!

New armour formed around Date's legs, based on tank tracks, as he took off. He was racing around, gripping his weapon tightly as he flew around the battlefield. Shooting at every Yummy and every Dopant he saw "Come on! Come on! You guys were tougher back then!"

CRANE ARM!

Nageta medal omoteka ura

Now change your life!

A large wire and hook began to encase a large group of robots, using them as a wrecking ball on to strike other goons

Namida wo Reverse Kitto Re:birth

The armours left Rebirth's form as Date began to crank his belt again, jumping into the air

Ima Me wo akete

Aa Mabushi sa wo kanjita nara

CELL BURST!

"Time to make bank!" he yelled as he rushed down, his glowing red foot causing an explosion which destroyed a good number of monsters

Tenkai Reverse/Re:birth

"Nailed it." he grinned and clapped his hands together

Ippo fumidasu no nara

Atarashii mirai zu ga Koko ni tanjou

Drive was focused, racing around the battlefield at top speed

Shinnosuke was running around, slamming his fists right into the faces of the revived Roidmudes, using his speed and strength to almost punch holes in their bodies.

Asette iru no ni koware sou na noni

onnaji keshiki no naka de

FOR-FOR-FORMULA!

Having pumped the blue car three times, blue energy began to pour out of Drive's form before he moved forth in a burst of speed.

karamitsui te kuru yokoshima na G-force

mie nai ashikase mitai ni

Shinnosuke was a blur of blue energy, running at such Mach speeds each time he seemed to slow down, he caused a sonic boom to run even faster.

Ah tomatte i tara

mata shizuka ni

"Terrorist groups like yours exist to hurt people... And as an officer, I refuse to let that happen!" Shinnouske as he ran, pulling out an orange F1 typed shift car and quickly getting to work.

tokei no hari

mirai o kizami

TIRE KOUKAN! FORMULA: 01

The tires on Shinnouske's arms were quickly replaced by slightly bulkier orange ones with silver caps on their back... And the exhaust in his back suddenly shot out flames as Shinnouske's speed increased, the car rider's punches encased in orange flame-like energy

Ah sono bun dake

okizari ni sare te

The Roidmudes screamed as Shinnosuke continued his attacks, even exploding one of the Roidmudes in his path, causing them to burst into another Roidmude.

He came to a stop, seeing some of the fake Roidmudes had been put in super-evolved bodies

"Oh no." Shinnosuke whispered in shock as he saw them as this got slightly harder.

"Shinnosuke, let's change it up!" Mr Belt spoke. "Even without Tridoron."

"Got it, Mr Belt!" Shinnosuke nodded

Get up speed furikiru shika nai

Like a stream ima o nukedasu nara

Suddenly a large weapon designed like a tractor-trailer truck arrived, Drive catching it and shifting the cab down to become a gun handle. He then inserted the Formula Shift Car into the top

FORMULA HOU!

Holding two more F1 styled cars, a yellow and green one, be quickly inserted then into a slot on the back of the trailer

HISSATSU! FULL THROTTLE!

negau mirai ni dakyou ha shi nai de

However Shinnouske wasn't done. He quickly flicked the key on the belt, pressed the red button on the Shift Brace and pumped the car in the brace

HISSATSU! FULL THROTTLE! 01

hashiritsuduke te iko u

Blue, green and yellow energy was gathering around the barrel of the massive cannon in Drive's arms. Meanwhile, the orange tires around his forearms began to spin at high speeds, orange flame-like energy swirling around him and gathering into the collected ball at the front of his gun

With a confident grind of his foot, securing his footing, he pulled the trigger

UNLIMITED DRIVE!

FULL FULL FORMULA TAIHOU!

The weapon unleashed an unmatched EXPLOSION of energy which flew through the air, disintegrating the Roidmude's before them and destroying a large chunk of the Foundation X base.

Drive lowered the weapon as he panted and smirked

"Nice Drive, Shinnouske!" Krim 'nodded'

*with Blood Build and Zi-O*

The two Rider's clashed, a difference in power obvious

Sougo was getting overwhelmed, Sento was too strong compared to him. But this sensation, the want to help his veteran Rider, trying to help him break through this. It was pushing Sougo to his utmost limits.

DrillCrusher and HeiSaber met in slash after slash, the two throwing punches and kicks into their assault

"You're weak! A newbie!" Blood Buil mocked as he grabbed Sougo's arm and threw him to the ground "You don't deserve to have those powers!" he called, trying for a killing blow with a downwards stab

"No one does!" Sougo countered, blocking the strike. "Because being a Kamen Rider isn't about the powers... It's about protecting people! It is a title you earn by using your power to save those who can't save themselves! Kamen Riders are heroes! Not weapons!" He shot back, he gave a harsh kick to Blood Build's stomach. And as he was hunched over in pain, Sougo gave a powerful upwards slash" Even if it means losing our lives! We fight to save others!"

Blood Build grunted as he held his stomach, feeling the slice in his body. "Heh." He smirked

Sougo stood tall once again, throwing his blade aside "Sougo... I know I can save you!" he called, hitting a button on the Decade RideWatch.

B-B-BUILD! FINAL ATTACK TIME BREAK!

"Let's see you try." Blood Build smirked, flicking his hand at the tip of the rabbit ear of his helmet

BLOOD FINISH!

The two jumped into the air, the two racing each other with their feet glowing with energy.

"AAAAAAAHHHHHHHHHH!" the two yelled, their feet colliding with the force of several dozen tons. Their powers battled each other, their forms trying to overwhelm the other and win...

KABOOM!

Both came crashing to the flood, hissing in pain

"You... Are strong, actually." Blood Build hissed

Sougo glared... And gasped as pink, red and blue sparks covered his armour

"Ha! And looks like your time is up." Blood Build scoffed

...

"... No... The experiment was a success." Sougo smirked as two forms appeared over his own. The first was Kamen Rider Decade Neo and the second... Was Kamen Rider Build RabbitRabbit form, holding a black and red and yellow sword. Sougo reached out and grasped the sword, which solidified, as he forced himself to rush forwards.

FULL BOTTLE BUSTER!

"WHAT?!" Blood Build gasped

Sougo pulled out a Full Bottle. It was the Tank Bottle, the top and bottom being white while the normal blue core of the bottle being metallic silver. He opened the weapon and slotted the bottle into place before closing it

TANK!

Blood Build looked in panic, quickly slamming the wrench of his belt down twice

RABBIT FINISH!

He gripped the DrillCrusher, preparing to slash Sougo with his weapon which was now glowing red

"SENTO!" Sougo roared as the RideArmour's faded away, back in his base Rider form, before he gave a horizontal slash which hit Blood Build's Driver

FULL BOTTLE BREAK!

Sento's Driver sparked with blood-red energy, almost erupting out of his body as he tried to still stand.

KABOOM!

In the science room, the cameras were cut out, having seen the fight before they were destroyed. Only audio was on, though distorted, there was still sound. "Good." The scientist was pleased. "The death of that weak Rider will be a sign to others." She turned around, in her hand was a large bulky yellow bottle as big as her hand with some blue caps and buttons on top. "Now. For the next phase, our conquest of the world. Our future."

"Good work Sougo. Thanks, I needed that."

...

"What?!"

"I'm just glad it worked." Sougo responded

"Of course it did." Sento laughed

"Impossible! How?!" The scientist woman snapped. "Get visuals back, now!"

*with the two*

Sento was laying against a wall, his hair back to its normal black and the SclashDriver and Blood Rabbit bottle shattered "I'm glad you got my message."

As Blood Build and Zi-O Double Armour battled, there was a moment their helmets neared. And as they did, Sento's voice whispered out "Use Tank."

"Well I wasn't sure why you wanted that, but I knew that was you all along." Sougo smiled "So I trusted you. The Build Watch... I felt your soul trapped within Blood Build. Of course, I had to help."

"I need a favour." Sougo said back in the cake boss' office

"A favour? What's wrong, Sougo?" Kougami asked

"I need you to make an artificial tank full bottle. Blood Build is Sento. And I need the power of tank to stop the rabbit." Sougo explained

"Of course my boy." he nodded, although he did look worried-

"How did that work anyway?" Sougo asked, looking at the shattered artificial tank bottle as the FullBottleBuster faded away

"Because Rabbit and Tank are a 'Best Match'." Sento smiled happily, rubbing his head softly "Blood Rabbit was a corrupted Rabbit, all Rabbit. With a powerful burst of Tank energy, it would be like mater and anti mater. The two would cancel each other out as the scales where rebalanced."

"Err...I don't totally get what you mean by 'anti-matter and matter'." Sougo answered. "But it's good to see you back on our side."

Sento chuckled and nodded.

"How did they get you under mind control anyway?" Sougo asked

*flashback*

"We will just have to make a new one."

"A new one?! A new Evol?!" Sougo yelled in panic "How?!"

Suddenly the wall opened... Revealing Misora tied to a wall "Sento!" she yelled in fear

"Misora!" He yelled... As some SMASH appeared in the room.

"It's very simple." The voice of the female scientist spoke through the speaker as the SclashDriver and Blood Rabbit bottles were thrown into the arena "If you do not use those, then Misora will die. They will use the Evol cells in your body and mature then strengthen them. Make you evolve into a new Evol. However, if you don't use them, Misora will die. You haven't got your normal transformation gear after all, this is your only option!"

"Sento! Don't do it! Forget about me!" Misora called as the SMASH moved closer, Misora flinching and pulling back from them as much as she could "I'd rather die than see you become a monster like Evol!"

"But can he?" The female doctor mocked "After all, he'd rather die so a peaceful world would exist. Your Web series was very helpful, Mr Kiryu." She said that last line with such mocking venom, Sento reaching for the devices

"Sento! No!" Misora screamed

"This is the worst." Sento sighed as he equipped the belt

SCLASHDRIVER!

"Get her!" The scientist ordered, the SMASH rushing forwards

"Henshin!" Sento yelled in panic as he rushed forwards

EVOL!

BLOOD RABBIT!

"NOOOOOOOOOOO~!" Misora screamed as the SMASH neared her, and the rushing Sento was surrounded by red energy

BLOOD RABBIT IN BUILD! BRAAAA!

MWHA-HA-HA-HA!

"MISORA!" Sento screamed as the armour formed around him as he jumped into the air

BLOOD FINISH!

He came down in a red rider kick, the SMASH destroyed as flames went off around him... And he gasped, red electricity sparking over his form before his eyes flash red and his body went limp.

"S-Sento?" Misora asked in fear... Before Sento began to laugh. But not with his voice "EVOLT! "

"SAIYKO DA!" Blood Build laughed as he stretched his arms out, spinning on the spot

The far wall of the room suddenly opened, the female scientist walking in "It appears this experiment, so far, is a success." she said casually

"Seems so, Miss Scientist." He smirked as he looked at her and let his transformation fade, revealing the white-haired Sento.

"Call me Doctor Mami Shizuka." the woman nodded, looking over Sento with a critical eye.

"Fine, Doctor Shizuka." Sento answered. "How do I measure up?"

"Much better than I expected." she nodded, her tone dropping lower

Misora groaned as she saw this, feeling disgusted that this woman was acting so callously.

"Get rid of her. Send her to the dungeon." Doctor Mami waved, her hand brushing Sento's cheek

Some guards came over, grabbing Misora and lead her away

"Hnn! Ow! Let go of me!" Misora grunted as she was pulled away.

"So, Sento, there is something I need you to get me." The doctor said "And if you do a good job, when Foundation X rules the world, there might be a 'place' for the two of us." she said as she pulled away

"Sounds fun." he chuckled and followed, staring at her

*end flashback*

"Okay! Okay! I don't need to know any more!" Sougo whined

"I thought you wanted to know." Sento responded

"Not all of it!" Sougo snapped as he put his blushing face in his hands

Sento shrugged and sat back... as Misora rushed in, carrying a large brown bag

"Sento!" She called out as she ran.

"Ah, Misora." Sento smiled as he saw her. "You got them?"

"Yes." she nodded as she opened the bag, revealing the BuildDriver and most of Sento's other transformation gear.

"Wow! How'd you get those?!" Sougo gasped

"From them. They don't put much stock into security when they think they've won." Misora answered "Also, Sento helped..."

"Oh~, missing your dead Martian friend, Misora?" Sento spoke condescendingly as he approached her cell.

"Yes. Because she would snap you out of this Sento!" she frowned

Sento chuckled darkly "Maybe. But I'm smarter than most of the people here in this building." as he dropped a small key from his left hand, seemingly not noticing

...

"And the most egotistical." Misora smiled

After Sento left Misora knelt down and grabbed the key, using it to unlock her cuffs and the cell.

As the door opened she carefully snuck out, her eyes glancing around quickly, before she took off. With the key had been a note

'Need my stuff'

"As I said, I am the smartest one in this building. I knew how to manipulate my manipulated body." Sento assured, revealing he had been fighting Blood Build from the inside out "I'm use to having voices in my head."

"Are you going to be alright?" Misora asked as he reached in and grabbed his Build Driver.

"No. But it's the job, right?" he smirked

That was when the other Riders ran in from outside

"Okay, now we gotta get Sento and-. Sougo?!" Shinnosuke spoke before the Riders saw both a freed Sento and an exhausted Sougo.

"How the-? How'd you get here?" Arata followed up

"I drove through the wall? That was the plan?" Sougo blinked

"Never mind." Arata sighed heavily.

"So, where's this Foundation X honcho?" Date asked, cracking his knuckles.

"She's in the lab." Sento nodded

HYPER CLOCK UP!

HYPER CLOCK OVER!

Suddenly Sougo was on the ground, blank RideWatch's thrown all over the place with the female doctor standing before them

"Hello everyone." the doctor commented

"So you're the one!" Date glared at her.

"Dr Mami, it's a pleasure." She responded. "Thank you for these."

As she said that she held up a blank RideWatch and the HyperZector, which she obviously had just used in order to throw Sougo away and grab said blank RideWatch

"Been a while Mimi." Sougo smiled, almost mockingly

"You don't know. What you're doing with that!" Sougo called out in worry, seeing the Blank RideWatch in her hand.

The Riders covered their eyes briefly as the light almost blinded them.

They saw the woman, who was smirking as she was illuminated in light. She wore a white lab-coat that went to her knees, which was fluttering from some unknown wind. Her hair, died dark blonde, was broken from free of the ponytail it had been held in all day by the very same winds and blew around her like a foreboding dark halo. She was wearing a tight black shirt and a black knee-length pencil skirt, some tan stockings and black high heels. Her dark brown eyes staring at the riders with madness from behind the glasses which added to her normal sensual look, now only emphasising the insanity they held.

The lab was opened up to them as she attached the Hyper Zector to a random part of machinery.

For a lack of a better description... It looked like the inside of a robotic being, computers and metal mimicking organs.

The many different things stolen by Foundation X where here.

Shift Tridoron covered in wires again a wall. The Club and Diamond Rouze Cards attached to a wall, magnetised to the metal. The HyperZector attached to a machine, like it was a lever to start a process. The Genius FullBottle inserted near the Pandora Box like it was slotted into a belt

Finally, high above their heads, was the energy generator stolen from Kougami

"You insane woman." Hajime whispered in shock.

"You dare use our things for your twisted machinations?!" Mr Belt shouted

"Foundation X shall rule! And now..." she laughed reaching into her lab coat pocket... And clearly began to panic "What?! Where is it?! Where is it?!" she yelled in fear

"Looking for this." Sento asked, holding up the Evol Trigger

Her eyes widened in shock. "How did you-?"

"I told you, I'm the smartest person in this building." Sento responded cockily.

She reached up and gripped his coat, pulling their lips close "You may be handsome Mr Kiryu, but even an asset like you can be replaced if need be. Do not fail again." she hissed

"Understood." he nodded, his hand slipping into her pocket and grabbing the Trigger in a way that made it look like he was holding her hip

"You need to be more careful, Mimi dear." Sento teased her, putting the Trigger back into his pocket

"Don't... Call me that." she hissed with a blush "Anymore."

"Aww! But you loved it..."

"Sento, enough." Shinnouske hissed

"Well, your plans are finished, Doctor!" Date called dramatically

"You foolish... Riders!" she hissed as she grabbed the HyperZecter's horn "Fine! Plan B!" she roared as she pulled the horn

HYPER CAST Off!

And then she slammed the blank ride watch into the Pandora Box as the machine came to life

A large ripple of space and time exploded from Pandora's Box, causing a large rift within the blast radius and showed off space and time within, a multiverse within that was mirrored to this one.

PANDORA!

The blank RideWatch in Doctor Mami's hand transformed

It had transformed into a black and white RideWatch with the number 0000 with a red and blue mask on the white faceplate and a strange twisted gear symbol on the top. "Yes! It worked!" She twisted the face-plate and pressed the white button on top of the RideWatch.

PANDORA!

"Stop her!" Sougo called out and ran at her before they were all attacked by general level kaijin.

"Oh, come on!" Date groaned.

"Misora, go, now!" Sento called out as he equipped the BuildDriver.

"Be safe." she nodded and rushed off

Sento nodded as he pulled out the Rabbit and Tank bottles. He gripped them tightly, shaking them as the other four riders fought the monsters

RABBIT! TANK!

BEST MATCH!

Sento inserted the two bottles and turned the crank on his Driver, making a pair of clear tube click-pieces appeared behind and ahead of him, filling with red and blue liquids.

ARE YOU READY?

"Henshin!" He proclaimed as the two half-body figures slammed together onto Sento and form his Default Form. Rabbit-Tank!

HAGANE NO MOONSAULT!

RABBITTANK!

YEAH~!

Sento ran at Mami and tried to fight her.

"You need to stop this!" he called, trying not to hurt her as the female scientist dodge his attacks "You are a woman of science! You're supposed to help people! To being peace!" the two caught each other's punches, their faces close as they grappled. You could almost see Sento's face through his helmet, his face filled with sadness as he begged her "Please."

"Oh, my bunny boy..." she sighed, resting her head against his "We would have made such a good pair. We would have beautiful children..." she suddenly kicked Sento away, making him full to the ground as she ripped a device out of the wall "Too bad my peace is Foundation X's!" she attached the device to her waist, revealing it looked like a solid black ZikuDriver missing the screen

Sougo punched away a Roidmude, seeing that Driver around her waist and his jaw dropped. 'Where did she get that?'

Dr Mami slid the Pandora RideWatch into her driver and pressed the top button, summoning a strange globe with a large black 'X' over it and pointed rhombus crystals around the globe. "How did you say it? Oh...yes. H̸̗́ȩ̷̟̉͂ṉ̷̛̓s̴̻̬̈́̅h̸͍͚͌ỉ̶̟̓n̸̤̤͐͗!̵̹̼̿͠" She proclaimed as she spun the Ziku Driver as the 'X' spun around and burst off.

MIRAI TIME!

The crystals shot off and surrounded Dr Mami, forming a black bodysuit with the rhombus crystals attaching themselves onto her.

PAN! DO! RA~! EK~KU~SU~!

She immediately gained red and blue spiked armour, rhombus crystals on the sides of her shin-guards, winged shoulder-pads with an elongated diamond watch-strap over her right shoulder down to her left hip; her arm-guards had two rhombus crystals on the sides. And finally, her helmet, on her visor was the Katakana for 'Pandora' segmented by the letter 'X' to form her antennae and three rhombus crystals to form a style of crown.

"Amazing...Such power. In the hands of a child." 'Kamen Rider Pandora X' proclaimed as she stood against them

"She transformed?!" Arata gasped

"All I have to do is beat you, take the Trigger back and drain the Evol genes out of your body. And Foundation X's world, my peace, will be achieved." Pandora commented as she walked towards Sento and grabbed him by the chest armour, pulling him to his feet "You could say, we will become one~. That actually sounds fun?" she mocked before punching the rider hard in the stomach

Sento grunted as he was flung into the air and crashed into the ceiling.

"Sento!" Sougo called out as he saw his friend, before an Another Rider came at him, distracting him from the goal.

FINISH TIME!

FOURZE! SURE SURE SHOOTING!

"Out of my way!" Sougo roared, shooting a barrage of missiles from his gun which exploded them

The other Riders were in a similar situation, destroying the monsters and following Pandora and Build.

"We got your back!" Hajime called out as he slashed with his bow-blade.

Sento had dropped to the floor, grunting in pain, trying to get back up.

Pandora walked towards Sento, humming to herself before the five Riders attacked her. She frowned, beginning the five on one fight... And she wasn't the one losing.

"Wh-what the hell?" Arata grunted in shock and fear at how strong this woman was.

Date followed up as they were flung back by Pandora's immense strength.

Chalice roared as he came down with a slash with his blade bow... and it was caught by Pandora, the female Rider throwing her opponent away with a powerful swing of her arm

"Darn it Mimi!" Sento frowned as he pulled out the FullFull Bottle and the Hazard Trigger "BUILD UP!"

TANK!

MAX HAZARD ON!

TANK AND TANK!

BUILD UP!

ARE YOU READY?

OVERFLOW! KOTETSU NO BLUE WARRIOR! TANKTANK! YABEI! TUEI!

Sento was now protected by blue armour created by a small armada of tanks and attached themselves to him, black body-armour with blue and yellow tank-shaped eyes and armour caterpillar tracks for back-trails.

"Hrargh!" Sento roared and continued to fight with Mami.

Sougo rushed forwards with two swords drawn. His main sword, the JikanGlaide, and a sword with his face on it, the SaikyoGlaide. He slashed with both blades as best he could... before Pandora ripped the main sword from him and kicking Sougo away, making him bump into Sougo

"Ha!" Pandora laughed as green energy sparked all over her body "You are so pathetic! If you had sent real Riders after me then this might have been a challenge!"

CELL BURST!

Tornado! Bio! Leaf Storm!

Pandora span around and held up her hand, blocking the force of two finishers with a force field of red and blue energy. Rebirth was using the BirthBuster at full power while Chalice was using a blast of wind and plant energy to try and stop the evil Rider "Instead you send someone who isn't even human. And a disgrace of a doctor who cares about money above so much!" She threw the attack away before she slashed with the JikanGlaide to cause a massive shockwave that threw the three back

FULL THROTTLE! FORMULA!

RIDER KICK!

Gattack came falling down, alongside Drive, as they tried to do a Double Rider Kick however she held the sword up sideways to hold the two back "An old relic, years past his prime! A worthless man! And a detective who could have ended this at the first fight if he didn't hold back!" she reached down and hit her Pandora X RideWatch, spinning the belt

PANDORA'S FINISH TIME!

PARADOX XTREME FINISH!

Green, red and blue energy swirled around Pandora's form before she pushed them back and gave three powerful slashes to send the two older Rider's back

"STOP IT!" Sento roared as he raced forwards, slashing with the FullBottleBuster. He knocked the blade from her hand and managed to get a few hard slashes in before she caught the blade

"You also sent me a baby Rider." she added, looking Sento in the eye "And the only real Rider I face... spent most of the time under my thumb." She smirked cruelly

PANDORA'S FINISH TIME!

PARADOX XTREME FINISH!

She raised her foot up high and gave a powerful kick, her ankle-high green heeled boot slamming into Sento's chest and surging green energy through his body.

Sento yelled in pain as he was sent flying back and crashed into Sougo this time as he had pulled out the Mirror Zi-O RideWatch to try and go into Zi-O II

Both were knocked out of the higher up room, crashing down to the main lab as they lost their Rider forms

The impact shook the lab, equipment being damaged and sparking all around them, from the battle above

Sento coughed and groaned, bleeding gashes all over his face. He saw the Genius Bottle on the ground before him, and he reached for it "This isn't... over yet!" he snarled as he gripped the bottle

"The 'Genius Bottle'? What can you do with that against me?" Pandora remarked as she stood tall while swatting away the three other Riders "It's lost all of its power! Just give up Sento, it would make EVERYTHING so much easier!"

"Oh... will you shut up!" Sougo snapped as he pulled himself up, accidentally ripping the HyperZecter from the wall "I swear if I have to listen to another villain speech, I am going to lose it." Holding the HyperZecter tightly he got an idea, and threw it as hard as we can "GO!"

"It doesn't matter if the Genius Bottle has ran out of power." Sento said as he pulled himself to his feet "It is a symbol of what I and my friends achieved. It is hope. Because being Kamen Rider's means never giving up! It means fighting to help everyone!" he stood there, confidently, as the HyperZecter was destroying the place and allowing some things to spring to life once again

"So what if I'm not human in body? I am human in soul." Chalice, Hajime, hissed as he stood tall as he slashed the 2 of Hearts through his belt and reverted to his human form

Spirit

"I have lived as a human. Cried as a human!" Hajime snapped, green blood dripping from his injuries "Laughed as a human! And fought with my heart and soul; my best friend lives in exile so I maybe with my new family, so I may defend them and everyone else in his stead! And I won't let you or anyone else destroy the world he sacrificed his happiness for!" he was now holding the Category King of Hearts card and slashed it

Evolution

Suddenly all 13 cards of the Heart suit emerged and combined, flying towards Hajime as he transformed into his final form

"Washed up doctor? I guess you could call me that." Date scoffed as he held out a golden coin "But only caring about money? Wow, did you misread me. Ha! Money makes the world go round! It doesn't buy you happiness but it gives you support to find it yourself! So what if being a Rider is my job? I still care about protecting everyone, I just enjoy the bonus!" and with that he slotted the medal into his belt

POP BIRTH! DAY!

"Old? Out of practice?" Kagami smirked as he stood tall "Yeah, I'm not the new kid anymore. I am more than ten years out of practice. But I will be fighting until my dying day to protect everyone I can! I am Kamen Rider Gattack! The God of Battle! Arata Kagami!" he reached up and caught the flying device, attaching the HyperZecter to his hip "HYPER CAST OFF!"

HYPER CAST OFF!

"I might not be willing to 'end things here'. But that's because I have my morals." Shinnosuke spoke as Sougo threw the Tridoron Shift Car.

He caught it, gripping it tightly "I want to have hope in people. I want to believe they can be saved rather than just destroyed. I saw Blood Build and I didn't want to kill him. I wanted to stop him, make him face justice and help him become a better person! It is my job to protect people!"

FIRE ALL ENGINES!

"It's a Kamen Rider's job to fight and to protect!" Sougo called

"We fight so everyone can be safe, and feel Love and Peace in their hearts!" Sento added "So they have their bright tomorrow!"

"That's what being a Kamen Rider means!" They both yelled, as lights shone from their hands "Huh?" they both blinked and looked down

Meanwhile, back up against Pandora, the four Riders had finished their transformations into their new states

Hajime was transformed into a slightly golden armoured version of himself; red body armour, black shin and arm guards, black boots, golden jutting out black chest-plate and shoulder guards with a green heart on his chest, a golden emblazoned red helmet with a green heart visor and golden markings on his body-suit.

Date had turned into a silver goliath of mechanical might, large caterpillar track legs with purple kneecaps, a blue patched drill with a green line on his right arm, mechanical wings, a large crane-like hand on his left arm and finally a large cannon on his chest with a red cannon mouth. The full combination of his: Crane, Shovel and Drill Arms, Caterpillar Leg, Cutter Wings and Breast Cannon.

CHANGE! HYPER STAG BEETLE!

Arata was sparking with blue lightning as his armour grew, silver leg and arm guards, thicker blue chest-plate armour with a red marking in the centre, the chest-piece was marked like a stag-beetle's pincers; his helmet's horns had become thicker and protruded out forwards with golden edges and bright red eyes.

DRIVE! TYPE: TRIDORON!

And finally Shinnosuke, his full armour had changed, all but his left arm was a bright red, his left arm was black with his shoulder having a thick black tire with white tread stripes. Shinnosuke's heels had small black tires with silver hubcaps, black gloves, red body-suit with white stripes, a car's bonnet for his chest-piece while his helmet was red with yellow eyes and two small silver mirrors just above the eyes and a red spoiler on the back of his head.

The four took their battle posses once more, ready to fight

Back down in the destroyed lab, Sougo and Sento looked at the lights in their hands

"Heh. The egotistical superhero revives once again!" Sento cheered as he saw the Genius Bottle restored

"The... Build watch? What happened to it?" Sougo asked as the light died down, revealing the RideWatch had... changed

GENIUS FORM!

"Ah, I see the Build Watch has finally evolved! Saiko da!" Sento cheered and gripped Sougo's hand, looking at the watch

"Evolved?" Sougo blinked

"Yes, it is what I wanted to speak to you about!" Sento nodded "I noticed all the RideWatch's are only the base forms and seeing how you grew stronger, it got me thinking! And it seems my theory was correct!"

"Really?" He blinked.

Back up in the battle, the four Riders were going all out.

Pandora was now on the back foot, as the four Riders in their strongest forms went up leaps and bounds in terms of power.

Chalice was using his new weapons, the Wild Slasher's causing sparks on her armour. He gave a series of harsh slashes, with seemingly wild skill and passion

"Gyah!" the female villain yelled in pain as the powerful slash of the Rider sending her back

"SHOOT!" Date called, launching a blast of energy from his chest cannon

"Crap!" Pandora gasped as she held her hand out. Her shield absorbed the blast as she regained her balance, but her shield cracked. As the blast ended...

"Hyper Clock Up!"

HYPER CLOCK UP!

Time paused as Kagami hurried in. He gave some really powerful blows, the red on his chest having turned a bright yellow. Pandora was floating in the air, Kagami following her as she flew through the air while giving powerful blows. Eight powerful punches, nine powerful punches, ten powerful punches!

He pulled his arm back and gave one last blow that sent her into a wall

HYPER CLOCK OVER!

"Grr..." Pandora hissed in pain...

HISSATSU! FULL THROTTLE! ATTACK 1-2-3!

... And then she was hit by flames, energy needles and energy shurikens hit her hard

"I think we got her..." Date commented...

"YOU DARN RIDERS!" Pandora roared and rushed forwards, slamming Hajime against a wall as energy poured off her body

"Well... damn." Date frowned as his tired feet let him rush forwards. He slashed with his drill hand, hitting her across the back

...

She turned around, glaring at him

"... I'm sorry." he squeaked

PANDORA'S FINISH TIME!

PARADOX XTREME FINISH!

Back down with Sougo and Sento, Sento was finishing his mini-lecture "The more you synch with an attribute of a Rider, and the stronger you get, the RideWatch's will allow you able to access more of their power." Sento explained

...

"Wow." Sougo blinked as he looked down at his new RideWatcch. The RideWatch was now pure white, as was the dial and button with all of the white having a sparkle-ish aspect to it

"You want a new Evolt? Well... it is time for me to use that power against you." Sento smirked up at the battle. He pulled out of the Evol-Trigger and pressed the red button on top

OVER THE EVOLUTION!

He slotted the device into his belt, and then hit the button once more

OVER-OVER THE R~EVOLUTION~!

"Now... let's start the Ultimate Experiment." Sento smirked as he held onto the Genius Bottle and tapped the blue button on top

GREAT!

ALL YAY!

Sento held the Bottle high into the air, slamming it down into his belt

GENIUS!

"I know we can do it!" Sougo smirked, holding both Watch's forwards before activating them

ZI-O!

GENIUS FORM!

Sougo slotted both onto his belt and unlocked it, getting into his transformation pose

Sento was grinning as he gripped the red handle of his belt and began to crank it

YAY! YAY! YAY! YAY! YAY! YAY!

Below Sento was a large blue platform, golden gear looking items either side of the platform with the tubes showing armour parts in it. Meanwhile behind Sougo was a golden version of his normal RideClock, and in front of him was the BuildArmour which was changing

ARE YOU READY?!

"Henshin!" The two called confidently

FEVERFLOW!

KANZEN MUKETSU NO BOTTLE YARO!

BUILD GENIUS!

The variety of bottles on the platform quickly attached to Sento's body as a white suit formed. As the bottles attached to the armour, a golden Build symbol attaching to his chest, the armour gained details that grew out of the bottles. The details where rainbow lines which added colour and detail to the suit. this, was Build Genius Form! ... and then the gears on the side slammed onto him, attaching extra armour as the rest of his form shifted

SUGEI! MONOSUGEI!

FUHAHAHAHAHAHAHAHA! FUHAHAHAHAHAHAHAHAHAHAHAHA!

It happened in moments, the white of his suit turning black as the rainbow-coloured lines and bottles of his drained away until they were bleached white. The now monochrome Rider, who still had the gold Build symbol on his chest, then gained the extra armour.

First was an ankle-length black tailcoat with some white detailing around the edges. Next were the new shoulder armour pieces, black and white rounded armour with large spikes looking as some sort of astronomical equipment. And finally, he gained some almost wing-like armour that wrapped around his shoulders and the sides of his chest.

This was Kamen Rider Build, Genius Black Hole Form!

Sougo span his belt, katakana shooting into the air as the normal Zi-O armour formed around him

RIDER~ TIME! KAME~N RI~DER ZI-O~!

The Build Armour in front of him shattered, transforming and changing as it neared his body

ARMOUR~ TIME! CHOU~ TENSAI~! BU~ILD~ GEN~IUS~!

Instead of looking like the basic 'RabbitTank' style armour, it had turned shining white with red and blue prismatic bottles on his shoulders, on his legs and arms were silvery shining guards and red and blue prismatic face-plate with his pink Katakana reading 'Genius'

GENIUS!

Both Sento and Sougo had transformed into their newest forms, stunning not only Pandora, but also the other Riders.

"Whoa." Arata gasped in shock

The two stood side by side, their visors shining

"We have the winning formula!" the two called, their hands sliding up their visors and flicking slightly

Pandora glared as she ran at the two, thinking her own strength and power would be enough to destroy them, she had overpowered Sento before, she would do it again!

... Before Build was suddenly right in front of her, a flash of black and white mist being the only sign he moved, before he hit her with a powerful punch

Mami was punched right into the wall of the building, causing a massive crater behind her from the impact. She grunted in pain, almost coughing up blood, only protected by her armour. 'I-Im. Impossible.'

She snarled as, in a flash of rainbow smoke, Sogou was in front of her

"Ora!" He called as he performed a spin kick, his foot colliding with her face and sending her outside the building. The six riders stood side by side, staring down at her

"No... No! I refuse to lose!" she roared "Foundation X shall reign supreme!" she slammed down the button in her belt and span it harshly. Gathering energy in her hands she roared and unleashed it in a massive burst of energy.

PARADOX XTREME FINISH!

"You may be able to beat us one vs one at this level Doctor, but with all six of us together..." Sougo said passionately

"We Kamen Rider are invincible!" the six called together, her attack being thrown around them and causing explosions to go off behind them as the lab was ripped apart by her own attack

'God, that was cool!' Sougo thought excitedly.

"You darn... Riders!" she roared

Kono mama aruki tsuzuketeiru

Kon'ya mo maasugu Hitori no ashiato tadotte...

Sento teleported back down to Pandora's side, grabbing her and kicked her towards the five other Riders, throwing her into a mosh-pit.

As she fell towards the group, Hajime and Date slashed with the Wild Slashers and Drill Arm respectively

Hateshinai, dakedo kimi dake wa

Dokoka de matteru Egao tayasazuni

Pandora crashed hard and snarled. As she stood up she was quickly kicked by Shinouske and Arata.

Sougo followed this up with a slash of his upgraded arm mourned weapon, the FullBottleBusterBuster, which he used to blast her. His shots where fast paced, making her stumble back

There you will

"ENOUGH!" she roared, energy shooting from her body before she began to 'return fire'

Now, Over "Quartzer"

Toki no ame Surinukete Tomo ni-

Sougo grabbed his twin swords and used them to deflect the blasts like crude reflective protectors in order to save Hajime and Date, while Shinnosuke and Arata ran around to stay on top of the energy shots.

You, Over "Quartzer"

Mirai wo koe yō

Be The One, Be The One

"I am Kamen Rider Pandora X! I will bring peace to the world under Foundation X! I will save it! So get out of my way!" she roared

All right!

"No! You are not a Kamen Rider!" Shinouske said passionately "You have no right to the title!"

Ashita no chikyū o nagedasenai kara

Kamen Rider Wild Chalice summoned all 13 heart cards and combined them, holding the Wild card tightly as he slotted the combined Wild Slasher into the Chalice Arrow "Kamen Riders protect!" he called

Wild!

He took aimed and fired the Wild Cyclone, the green burst of wind and energy flying into the air and through her shoulder

Be The Lights, Be The Lights

"Kamen Rider's suffer for others peace!" Kamen Rider Hyper Gattack called

MAXIMUM! RIDER! POWER!

1-2-3!

"Hyper Kick!" Arata Kagami roared, ripping the horns of his belt open once more. He jumped into the air, performing a sweeping kick in the air that sent her to the side even as she tried to block.

All right!

"Kamen Rider's do their job to make the world a better place!" Kamen Rider Rebirth Birthday called as he rushed forwards

CELL BURST!

Akira Date rushed forwards and gave a powerful energy filled uppercut which sent Pandora into the sky.

Kako no ishi wa

"Kamen Rider's fight for justice!" Kamen Rider Drive Type Tridoron called as he helps the TrailerHou and quickly got to work.

SPEED-HOU!

HISSATSU! FULL THROTTLE! TRIDORON!

Shinouske Tomari pulled the trigger, unleashing the massive into the air, pushing her higher and higher into the air

Uso de wa azamuke nai

"Kamen Riders fight for Love and Peace!" Kamen Rider Build Genius Black Hole form called as he cranked his driver

ONE SIDE! OTHER SIDE!

Kanjiro sō Nexus Future

"Kamen Rider's fight for the future!" Kamen Rider Zi-O Build Genius Armour called

FINISH TIME! BUILD!

Be The One, Be The Lights

"THAT'S WHY YOU AREN'T A KAMEN RIDER!" The two yelled as they jumped into the air as black, white, gold and rainbow energy pushed them upwards. A physics graph appeared and trapped Pandora in the sky, almost like a Web, and threw her at the two riders

ALL SIDES!

Message, Okoru yo hibiku yo!

BLACK HOLE BREAK! GENIUS FINISH!

GENIUS TIME BREAK!

Now, Over "Quartzer"

Their energy-filled kicks collided with Pandora's stomach, the evil rider screaming in pain "FOUNDATION X! BANZAI!" She screamed as the attacks overwhelmed her and her belt shattered along with her RideWatch

Mabayui sekai

KABOOM!

The two rides landed on the ground as their foe exploded in the air, their visors glowing as the sky darkened for a small moment.

Misete

The building around them began to collapse, all of the scientific work that Foundation X did here was coming down around them. "We have to get out of here!" Date called out as the ceiling began to come down around them.

"Don't worry, I've got this!" Sougo nodded. He pulled the Zi-O watch off his belt and pressed the button twice

TIME MAZINE!

Appearing from a portal in time from above them was the giant robot/bike inspired vehicle as it flew down and opened its hatch.

"When did we start getting mechas?" Arata asked in shock as he saw it.

"Everyone aboard! Let's go!" Sougo called out

Sento looked behind him, trying to see where Pandora had dropped...but couldn't.

However as he was about to get onto the time machine... He heard it, a female voice whining for help. He took off running, his rider form fading away

He found the female scientist trapped under some rubble, her lab cost gone and her shirt slightly ripped with her face and arms covered in cuts and bruises from the battle.

Sento quickly got to work, pulling the rubble off the unconscious woman's body

"Don't worry, I got you." He whispered, reassuring her.

"Sento!" Sougo panicked as he saw the rubble coming down.

"Guys, we gotta go!" Hajime called out.

"You go! I've got to help!" Sougo responded, leaping down and ran towards Sento to pull the rubble off.

"Sougo, what are you doing here?!" Sento called

"I'm not letting you die!" Sougo called back, the two quickly throwing the last of the rubble away

Doctor Mami lay there, the two seeing the shattered remains to the driver and watch laying scattered around her waist

"You should have left me and got out of here." Sento commented, the two picking her up

"Well, I'm saving your life because I don't want to see you die!" Sougo grinned back "You could say I'm being selfless to be selfish!"

"Ha. You've grown up, kiddo." Sento smiled, the two carrying Doctor Mami as they rushed for the Time Mazine

CRANE ARM!

"Up you go!" Date called, using the cable of his CLAW weapon to wrap around the three and pull them into the machine as it took off

"That was close." Arata panted as they all detransformed

"Yeah." Sento nodded, the fake Evol Trigger turning to dust "Huh. Guess they didn't make it properly."

"Yeah." Sougo nodded as the Build Watch returned to normal. "Oh...Guess this wasn't permanent either."

"Don't look a gift horse in the mouth, King Kid." Date responded as they left, seeing the building collapse and destroy everything inside of the building, anything useable was now either wreckage or future salvage.

Shinnosuke looked at Misora, who had gotten out with them and sighed in relief. Foundation X had been stopped for now, but this was not a full victory. But right now, this was enough.

*time skip*

"Cheers!" the six riders, Mr Kougami and Misora called as they all clinked glasses

"And thank goodness we all got out there alright." Sougo added.

"Goes without saying, Mr Tokiwa." Mr Kougami responded

"Oh. Right. I'm sorry we couldn't get the generator back, sir." Sougo bowed in apology

"It's fine my boy! We still have the blueprints and can easily rebuild it! Better to have it destroyed than in evil hands, however!" the cake boss cheered softly

"Really?! Oh, thank goodness." Sougo sighed

"So... What was it like being mind-controlled?" Arata asked

"The best way to describe it? Drunk. I had no filter and I wasn't myself as my twisted personality said things I didn't even consider once, a second personality that was a twisted me and just spoke... Everything it wanted." Sento admitted

"Oh Sento..." Misora said sadly, upset he had to go through that ordeal again

...

"So... 'bunny boy'... You and Ms 'all glasses and legs in a lab coat', huh?" Date said with a perverted grin, elbowing Sento playfully "Come on man, spill the beans! We're all adults here!"

"I'm technically not." Sougo responded

"You're late teens, it'll be alright." Date waved off jokingly making the others laugh.

"Speaking of. What are we going to do with her?" Shinnosuke asked as the laughter died down.

"You mean 'Mami'?" Sento asked as they had put her in the Kougami's medical ward.

"Yeah. I mean, she's a Foundation X member. She's a dangerous person." Shinnosuke added. "She kidnapped Misora. She has to be held accountable."

"True...But so was Takumi Katsuragi." Sento answered seriously and looked at Shinnosuke, which received a sudden silence.

Sougo looked around at the Veteran Riders, feeling like this was something they were in on and something he wasn't privy to. But the name 'Takumi Katsuragi' sounded familiar.

"Once she recovers she'll face justice, like anyone else." Sento shrugged sadly

BOOM!

The doors suddenly burst open as Geiz, Tsukuyomi, Woz, Banjou, Kazumi and Gentoku

"Mr Kougami, we got here as fast as we could! We heard Sento was..." Geiz started before the group froze

"Perfectly... Fine?" Banjou blinked

"Um. Hi guys. Want some cake?" Sougo nervously laughed as he held his drink.

"You're a bit late." Hajime commented

"Mii-tan, are you okay?" Kazumi asked as he saw Misora.

"Obviously, Potato." Gentoku rolled his eyes.

"My Overlord, what happened? What is all this?" Woz asked

"Well..."

Sento ignored everyone as he silently left the room, heading to the medical area

Since it was the Kougami Foundation care, it was top tier...if you didn't go straight a private hospital of course. He walked straight to Mami's room, where she was hooked up to monitors and an IV drip, resting peacefully in the bed.

He sat next to her, which was when her eye twitched.

Sento didn't want her to wake up on his account but by her own strengths. He quietly waited as he saw her eyes slowly open. Millimetre by millimetre. Her eyelashes fluttering as she tried to awaken.

"Wh-Where am I?" she whispered weakly

"At a private hospital of sorts. How are you feeling?" Sento asked softly

"My whole body hurts." she said, Sento noticing her tone of voice was much softer than it used to be. She turned to him and blinked "Who... Are you?"

"Very funny Mimi." Sento sighed softly, sitting back

"Mimi? Is that... My name?" She asked and Sento froze. He saw the look in her eye, one he knew very well... She'd lost her memory

"This is the worst." He whispered in realisation before he steeled himself. He had been where she is right now, lost without any memories. He was going to help her through this, like how Misora... And that darn Evolt... Did for him. He'd give her a new start, away from Foundation X. She can be happy, a new beginning "My name is Sento Kiryu. And Mimi is my nickname for you. Your name is Mami Shizuka, a highly acclaimed doctor in physics and quantum mechanics..."

*upstairs*

"Nooooooo!" Woz screamed dramatically as he fell to his knees, his hands pulling at his hair "I missed a chance to rejoice for my Overlord?! This is the worst!" he cried, falling only all fours as a cloud of depression surrounded him.

"He's certainly a strange one." Kagami sweat dropped

Gentoku nodded and opened his cost, showing his purple shirt which read "YES!"

"We all are a little odd." Tsuki smiled

"Hey! Geiz dude, slow down on the cake! I want a slice too!" Date called as Geiz was eating his fifth slice since he arrived.

"That is unhealthy." Hajime commented

"I'm glad you're safe." Kazumi commented, hugging Misora

"Well, I am. You can let go now." Misora blushed

"Damn, those two are so cute I might puke." Ryuga joked while Shinnouske sighed happily, thinking about his wife

"Foundation X is finally gone." Kougami explained to Sougo "This was their last-ditch effort, using scraps of past projects and desperate haste, as they had ran out of money from all their projects constantly being destroyed. In the end what destroyed the evil organisation was the very thing that got it started, money! All because they didn't grasp their own desires, instead of letting others do it for them. No wonder they failed, huh Sougo my boy?"

Sougo laughed as he looked at everyone. This was his life, his family

While most of these people he wasn't related to by blood, that's what the Kamen Riders were. A group of people who earned a title by helping people, that title was a magical bond. They'd be there for each other if needed, they'd fight and argue and they'd risk their lives for each other.

This was his life, and he was happy to see where it would go.

In his hand, the Zi-O watch gained a golden shine for a moment, as the future was looking bright

To be continued

If you have any comments please leave them in reviews.