A/N: HI READER

It's here, the Kamen Rider Decade story. Now to explain somethings which people seem to be confused about, this story follows the journey of Shiro Kadoya the son of Tsukasa and Natsumi as well as Kari Kaito the adopted daughter of Daiki Kaito.

Their journey will take place through all my past Fanfics which will not be cannon to said stories.

So now, let's begin this journey.

KAMEN RIDE! WRITER!

Destination 1: The Journey Begins

ATTACK RIDE! BLAST!

ATTACK RIDE! SLASH!

Two armoured warriors, one magenta while the other cyan, readied their weapons as they focused their attacks on a third grey armoured warrior.

The cyan one attacked first by firing an assault of cyan coloured lasers. The grey warrior either took the hits head on or deflected them with his own weapon.

The magenta one then charged with a pink colour coating his sword. The grey one also charged with his own weapon as the two dealt blows until the magenta one landed one last hit across the grey one's stomach.

The grey figure dropped his sword and fell to one knee. "So this, is the end of our dance…"

The magenta one walked forward as his armour deactivated, showing a man in his 30s with brown hair.

"Heh-heh-heh, Tsukasa Kadoya…" The grey one chuckled. "Kamen Rider Decade…"

"In all honesty, the only reason we were able to beat you was because your plan was the most convoluted one ever." Tsukasa sighed as he put his hands in his pockets. "Seriously how did you think that was gonna work, Dark Decade?"

Dark Decade groaned as he stood up and held his stomach. "The plan was perfect; the only flaw was that these Dark Riders are idiots…"

"Well anyway, you've lost." Dark Decade only started to chuckle again. "Now what?"

"Oh it's only the beginning. Call me cliché but, there's a bad future coming your way…" A silvery veil opened behind as he walked backwards into it. "All in due time…"

Tsukasa frowned as the portal closed in front of him.

"Well what do we do now, Tsukasa?" The cyan coloured asked as his armour also deactivated, showing he was close to the age Tsukasa but had lighter brown hair.

"Only one thing to do Daiki, go home." He turned around to look at the other Rider. "The new guy's almost here anyway." He smiled happily.

[Three years later]

"Please Tsukasa, I need you to look after her." Daiki said in a saddened tone as he was in his armour, a sleeping toddler in his arms. "Her mother, my best friend, is gone because of my selfishness. I wouldn't want the same to happen to her."

Diend stood outside Hikari Studios with Tsukasa, a woman with long black hair and a child at the age of three.

"You're sure about this Daiki?" The woman asked.

"I am sure Natsumi. She doesn't deserve the same fate as Anki. Please." He held the girl gently as he handed her to Tsukasa. "I don't want her following in my footsteps."

The girl stirred and opened her eyes slightly. "D-Daiki?"

"Sh, no need to worry Kari." He gently ruffled her black hair. "These are friends of mine, and they're going to look after you while I'm gone."

He took out his Diend Driver and slotted a card into the side.

ATTACK RIDE! INVISIBLE!

He waved before shimmering away.

"Well little miss Kari." Tsukasa said as he set her down. "I guess we better get to know each other; I'm Tsukasa, this is my wife Natsumi, and this little twerp is my son Shiro." Tsukasa motioned to the little boy, he had short brown and green eyes. "I feel like you two will get along great."

[Thirteen more years later]

"Happy birthday~~~~~ to you!" Tsukasa and Natsumi sang embarrassingly to a now sixteen-year-old Shiro.

The boy had grown to look not that different than his younger self. He wore an unbuttoned black jacket over a magenta shirt with brown trousers and black shoes.

"Mom, dad, stop! This is embarrassing." He chuckled.

"Nonsense!" Tsukasa said as he ruffled his son's hair. "You're sixteen now kiddo, these are exciting times. Now let's get to the presents."

"But first, go get Kari. It is her birthday as well after all." Natsumi said which made the two boys groan as they wanted to open the presents.

"Alright mom." Shiro got up from the table and headed up the stairs. He walked up to a blue coloured door and knocked it a few times. "Hey Kari, come on it's time for present! Let's go!"

There was a groan on the other side of the door as it opened to show a groggily tired sixteen-year-old with shoulder length black hair and violet eyes.

"Shiro please….just go ahead and open the presents without me." She yawned and went to shut the door but was stopped by Shiro.

"No can do. You know how persistent my mom can be." She only groaned again and pulled the door hard enough to close it.

"Gimme a bit to get dressed." There were rustling sounds before she opened the door again. Kari was now in a black long-sleeved shirt with a blue tank top jacket and fingerless gloves. She had denim shorts with black thigh high tights and blue shoes. "Alright yay birthday let's go open some stuff."

"That's the enthusiasm I love." He said sarcastically as the two went back downstairs. As the day continued on and Shiro and Kari opened their presents gifted by all the other Riders.

"Right, now for the best for last ones." Tsukasa grinned as he pulled out two last boxes, one magenta and the other cyan. He slid them across the table so that they landed directly in front of the teens. "Now these took us and the other Riders one hell of a long time to make."

Shiro and Kari looked at each other confused before they opened the boxes. Inside Shiro's was a belt buckle with an outer black colour while the middle was bright magenta with eighteen different symbols. And in Kari's box was a bright cyan gun with silver lining that made some kind of symbol in the middle as well as two pair of golden lines.

"No way, are these…" The two got excited as they looked at the objects.

"Yep. You've finally got your own Drivers. We call these the Neo-DecaDriver and Neo-DienDriver." Tsukasa said as he pulled out his own DecaDriver. "Think of them as upgraded versions of the Drivers Daiki and I used when we travelled."

"So does this mean we're Kamen Riders?!"

"No, not yet." That brought their excitement down a bit. "These are just to start out your training, you're still a bit young."

"Well do we at least have all the cards?" Kari asked, in which Tsukasa only shook his head.

"Nope, I had to go out and earn those powers, so you have to as well." That made the two groan. "Aw suck it up."

"Well before you make the kids too miserable, how about we get to that birthday cake?" Natsumi said trying to lighten the mood. She was about to go to the kitchen to get said cake, if it wasn't for a young black-haired male to bust through the front door.

"Tsukasa, big problem!" The guy said.

"Yusuke please, it's my son's birthday. Can't this wait?" Tsukasa brushed off the AR Rider.

"N-no it can't! You gotta listen, its-!"

"TSUKASA KADOYA…!" A voice cut of Yusuke as Tuskasa gained a serious face. He put on his Neo-DecaDriver and walked outside, followed by Natsumi and Yusuke, Shiro and Kari looked out the window.

What they saw was a man in a black body suit with grey armour and a golden x going across his chest. His helmet was grey with blue eyes and looked like a barcode and on his waist was a black version of the DecaDriver with a blue centre.

"Did you miss me…?" Dark Decade snickered.

"Yusuke, get the kids out of here." Tsukasa said without breaking eye contact with Dark Decade.

"Wait dad, who is this guy?" Shiro asked as he was going to step outside, if not being stopped by Natsumi.

"Shiro, sweetie, listen to your father and go with Yusuke. It'll only be dangerous if you stay." She said with seriousness that Shiro and Kari had never seen before.

"O-okay." The two teens grabbed their new Drivers and went to follow Yusuke to get away from the ensuring battle.

"And Yusuke," The younger man looked at the older. "Take them to him." Yusuke seemed to understand and nodded before the three ran off.

"So, how long has it been, sixteen years?" Tsukasa asked rhetorically, which only made Dark Decade clap slowly in amusement.

"Ah so you still have not lost that snarky attitude…" He stopped clapping and took his Ride Booker of his belt to make it into a sword. "Now enough talk, let me introduce my new friends…."

He raised his hand lazily as silvery veils appeared all around the nearing streets. Out of every single one stepped out a different Dark Rider from G4 all the way to Killbas.

"So this is happening. Shall we Natsumi?" Tsukasa said as he reached into his Ride Booker and took out a card.

"Kiva-La!" Natsumi called as a small white and pink bat flew out of the house and around her. "Here we go!"

"Henshin!" They both said as they activated their different transformations. Tsukasa slotted in his Ride Card into his Driver as Natsumi was surrounded by pink hearts.

KAMEN RIDE! DECADE!

Eighteen silhouettes formed around Tsukasa as they all combined into his armour. His suit was the same as Dark Decade's with the exception of it being mostly magenta with a black and white x across his chest as well as green eyes.

All the heart formed onto Natsumi as her armour was shown. She had a full white suit with bits of purple and silver, her helmet was bar shaped with red visors shaped as bat wings.

"Calling all Riders, we have a code red emergency. He's back." Tsukasa said into a communicator in his helmet. All around Tsukasa's side of the field the same silvery veils opened up as every Rider who fought for good stepped out.

"Break them…" Dark Decade ordered as all the Dark Rider charged as did the good Riders, leading to a full-on war.

The main focus though was the battle between Decade and Dark Decade as their blades clashed over and over again.

ATTACK RIDE! SLASH!

ATTACK RIDE! SLASH!

Both their swords glowed their corresponding colours which made them slash faster. The Dark Rider faked out Tsukasa and managed to slash him across the chest and kicked him away.

Tsukasa folded him Booker into gun mode and opened fire. Dark Decade ran at him as he deflected the shots.

"After I'm done with you, the boy is next…"

"You won't touch my son you creep!" Tsukasa declared as he fired one shot into Dark Decade's helmet, making him chuckle.

"Did you really think I wouldn't have sent someone for them to play with…?" That made Tsukasa growl.

"You sick bastard!" He changed his Booker back to a sword and went to attack the other Rider.

[Meanwhile, with Shiro, Kari and Yusuke]

"Come on pick up the pace!" Yusuke said as he and the teens ran through the streets.

"W-wait Yusuke! Who was that guy?!" Shiro called out as he tracked behind a little.

"That's a conversation for later, now keep running!" And running they did until the worst possible thing could've happened.

ADVENT!

Out from a shop window jumped a large bronze humanoid crab. Following the Mirror Monster was a Rider in a black bodysuit with bronze gladiator/crab like armour on his torso and helmet. On his left arm was a kind of gauntlet with a silver pincer.

"Scissors and Volcancer." Yusuke scowled. "Turn around, other way!" The three were about to turn to run a different direction, if not for…

CLOCK UP!

A bronze blur rushed past and thwacked Yusuke across the face. The blur stopped in place to show another Rider, this one wore a black body suit with bronze beetle themed armour on his torso, shoulders and helmet. His visor was green with a beetle horn separating it to look like eyes.

"Kamen Rider Ketaros." Yusuke grunted as he stood back up.

"Look what we have here, a couple of lost teenagers." Ketaros chuckled.

"Let's cut them down to size, shall we Volcancer?" Scissors asked rhetorically to his Mirror Monster, who roared in agreement.

"Stand back kids, I'll handle them!" Yusuke defended before he put both his hands against his waist, which summoned a silver belt with a red centre circle and multiple coloured buttons. "Henshin!" He slammed his right hand onto the button on the side as the Arcle released a high-pitched pulse sound.

Yusuke now had a black body suit with bright red armour. He had gold braces on his ankles and wrists while his helmet looked like a stag beetle.

The Dark Riders chuckled as Kuuga cracked his knuckles. The red Rider swung a punch at Ketaros who dodged to the side and hit Kuuga across the back of his head. He grabbed his shoulders and threw him towards Scissors who slashed him across the chest with his gauntlet.

Kuuga managed to land a hit on Scissor's helmet before Volcancer came up behind him and grabbed both his arms with its claws.

"Deal with him already, I've got the kids." Ketaros said as he looked back at Shiro and Kari.

"Shiro, what do we do?" Kari asked uncertainly as the Dark Rider advanced more. "Do we fight?"

"You're not serious are you? We're just a pair of kids against an evil armoured guy! What are we supposed to do?!"

"I mean we got these." She held her Neo-DienDriver. "Can't we use these?"

"We have no training whatsoever with these things, that and we can't fight!" He reasoned. Kari only huffed and spun the DienDriver on her finger.

Ketaros ran forward and swung a punch at Shiro who ducked under just as Kari raised her weapon and fired two shots which made the Dark Rider stumble.

"Now or never Shiro, now or never!" Shiro looked at the Neo-DecaDriver in his hands before sighing and slapping it to his waist that made a belt strap around his waist.

"Alright, here goes." Shiro opened the Ride Booker on his side and pulled out the same card as his father, Kari also pulled out a card from a deck box strapped to her shorts.

Kari slotted the card inside and pushed the barrel forward while Shiro pulled apart the DecaDriver and placed the card in.

KAMEN RIDE!

KAMEN RIDE!

"Henshin!" Kari aimed the DienDriver above her head while Shiro closed the DecaDriver.

DECADE!

DIEND!

Around Shiro appeared eighteen silhouettes that shifted around him before they formed into the exact same armour as Tsukasa. From Kari's gun came blue bars that flew around her head as a green, red and blue hologram of her Rider form shifted around her. The armour solidified on her as the blue bars slammed onto her helmet and gave the suit its colour.

Ketaros huffed and pushed himself up as Scissors stopped assaulting Kuuga and Volcancer threw the Rider to the ground.

"Wow, looking good Kari." Shiro complimented as he looked over his armour as well.

"I always did say blue was my colour." She added as she spun her gun again.

The two Dark Riders growled and charged at the teens.

CLOCK UP!

Ketaros ran at high speeds towards Diend while Scissors and Volcancer charged at Decade. Diend used the super speed of her armour to combat the Zect Rider while Decade managed to barely hold his own against the Mirror Monster and its master.

While Diend was able to move faster then most Riders, its speed was still not as fast as Clock Up, so she was lacking behind. The two clashed at times but Ketaros was slowly overpowering Kari with his faster speed.

At one clash, Ketaros managed to trip Diend over as she tumbled to the ground. Ketaros took out an axe/gun weapon and ran to her again.

"Well if speed won't work, let's try this." She took a card from her deck box and slotted it in the Driver.

ATTACK RIDE!

She aimed at Ketaros and pulled the trigger.

BARRIER!

A blue energy barriers appeared before Ketaros and stopped him in his place. Diend to this chance and unloaded multiple blue lasers at the Dark Rider. She took another card and loaded it in.

ATTACK RIDE! BLAST!

Diend fired an absolute swarm of lasers that pelted Ketaros and hissed out smoke. She took this chance to run and shoulder bash the opposing Rider and fire more blasts into his chest and stomach.

Meanwhile with Decade, he somehow held his own against both Scissors and Volcancer. The Mirror Monster tried to take a bite out of the Rider if not for Decade to bash it across the face twice before kicking it away.

Scissors tried to run in for a surprise attack if not for Decade to turn around and grab his gauntlet before it could slash him.

"Man Shinji was right; you are the weakest one." Decade insulted, which angered Scissors.

STRIKE VENT!

While Decade wasn't paying attention, the Dark Rider placed a card into his Scissors Visor which summoned a pincer similar to Volcancer's.

He did an upwards slash that casted sparks off Decade and pushed him back a bit. Volcancer roared and rushed at Decade as the magenta Rider took his Booker into sword mode, and just as the Mirror Monster was to combat him, Kuuga came in from nowhere and tackled it to the ground, assaulting it with punches.

Seeing this as a chance, Decade attacked Scissors with his sword while the crab themed Rider attempted to defend himself with his claws. After kicking him into some nearby bins, Decade opened his Booker and took out a card.

ATTACK RIDE! SLASH!

Decade's blade glowed magenta as Scissors pushed himself back up. The bronze Rider attempted another attack, which Decade ducked under and slashed across his stomach. He continued with more slashes and with one more sent him sprawling to the middle of the street the same time Volcancer and Ketaros did.

"I'll let you kids finish them, I'm not up for it." Kuuga said as he held his side.

"Gah! You bastards!" Ketaros growled. "Who do you two think you are?!"

"Oh, I remember dad answered with this once." Decade cleared his throat. "Tōrisugari no Kamen Rider da. Oboete oke!" He attached his Booker and took out one last card as did Diend.

FINAL ATTACK RIDE!

A cone of holographic cards appeared in front of the DienDriver as Diend aimed her gun at the enemy.

D-D-D-DIEND!

She pulled the trigger as a huge blast fired at the Dark Riders. The two pushed Volcancer in front of them who took the hit head on.

Decade slammed his DecaDriver closed as a row of holographic cards appeared in a straight line in front of him.

D-D-D-DECADE!

He jumped to the air as the cards aimed at the two Dark Riders. Decade stuck his right leg out as energy coated it. The kick landed and caused an explosion to cover Scissor and Ketaros as he landed, the Dark Riders falling unconscious.

Decade and Diend's transformations deactivated as they panted heavily.

"Not bad for a first fight kids." Kuuga sighed as he limped over to the teens. "You're both gonna make fine Riders in the future."

"Um, thanks Yusuke." Shiro scratched his arm.

"Right then, no more time to waste, we need to get going."

"Go where?" Kari asked.

"You'll understand when we get there." Is all that Kuuga said before they started to slowly run again.

[Back at the War]

VOLTECH FINISH!

EVOLTECH FINISH!

Build and Evol jumped to the air and stuck out their legs as their kicks connected, causing an explosion.

SWORD VENT!

SWORD VENT!

Ryuki and Ryuga both caught their Sword Vents and started to full on swash buckle, while Zolda fired bullet after bullet at Ouja who snaked around them.

CLOCK UP!

CLOCK UP!

Time seemed to slow down as Kabuto and Caucasus fought in high speed hand to hand combat.

START UP!

Faiz ran circles around Psyga who tried shooting at him with his jetpack's guns. Faiz jumped and pulled him to the ground before they both took out their melee weapons.

"TIRE KOUKAN: MAX FLARE!"

The flaming tire slammed onto Drive's chest as he blasted fire from his hand. Dark Drive braced for the attack yet still ran through to attack.

LEMON ENERGY SQUASH!

Duke pulled back the string on his Sonic Arrow and fired multiple arrows that Zangetsu and Ryugen dodged and rolled out of the way before firing back with their weapons.

But in the centre of it all, Decade and Dark Decade were duking it out with their swords.

"You've gotten weaker in your old age Tsukasa…" Dark Decade commented as he landed a hit across his chest.

"I'm not old I'm experienced!" Tsukasa retorted and opened his Booker to take out a card. "Henshin!"

KAMEN RIDE! HIBIKI!

Fire surrounded Decade before he swatted it away to reveal he turned into Hibiki.

WEAPON RIDE! ONGEKIBOU REKKA!

Decade reached behind his back and pulled out two red drumsticks. The two charged again as Decade was gaining the advantage now with his faster weapons. Each hit he landed sent a small fiery pulse like a beat.

ATTACK RIDE! KIBOJUTSU REKKADAN!

The tips of D-Hibiki's Rekka lit aflame as he threw fire balls at the Dark Rider. Dark Decade was about to retort, if not for Kiva-La to jump form behind Decade and stab Dark Decade in his chest.

The Dark Rider tripped over a rock and fell to his back, Decade and Kiva-La walked up to him having just gone back to his base form.

"And once you again, your plan failed." Decade dusted off his hands. Dark Decade only started to let out a minor chuckle, which evolved into a full-on evil laughter. His laugher was so loud that it caught the attention of every single Rider, ceasing the fights.

"Oh but on the contrary Tsukasa, my plan is going perfectly…!" Dark Decade stood up with his bones cracking. "Because, I finally gathered everyone. All the goodie too shoe Kamen Riders that seem to thwart every evil plan, oh and let's not forget the idiotic Dark Riders who screwed up the plan before. Everyone's here…."

"What are you blabbering about?" Evol asked as all the Dark Riders growled in offence.

"What I'm blabbering about is that I won't have to deal with any of you, any longer…." Dark Decade attached the Ride Booker to his belt again and took out one last card. It was the same colour as the Final Attack Ride cards but was cracked.

FINAL ATTACK RIDE!

He shut the Dark-DecaDriver shut as sparking energy travelled from the Driver to his left hand.

E-E-E-ELIMINATE ALL R-R-R-RIDERS!

Dark Decade grunted as he struggled to form his fingers into a snap. "You should have aimed for the head…."

He snapped his fingers which released a massive pulse of energy. All the Riders looked at each other, waiting for something to happen, yet nothing did.

That was until…

"Whoa-whoa-whoa what's happening?!" All their gaze fell on Faiz, who seemed to be turning to dust as he faded away. One by one each and every single Rider was fading away into dust.

"This defies all scientific logic!" Build began to ramble.

"Sento now is not the time for-!" Cross-Z couldn't finish as the two faded away.

"Is this what a true death feels like?" Eternal looked at the dust as he faded.

"Turtle? Bear? Brat?! Where'd you guys go?!" Den-O looked around the entire area before gasping and fading.

"This won't stop me! I can control time!" Cronus yelled as he was going to press the buttons on his Driver, if not for his hands to dust away first, followed by the rest of him.

"Well this is interesting." Evol seemed far too calm as he also dusted.

"Do I really have to die again?!" Ghost groaned as he fell to his knees and faded.

"Guess I'll be seeing you now Chase." Mach coughed and fell to his stomach.

Blade and Chalice dropped their weapons and looked at each other. "So I guess the Battle Game can finally be over."

Tsukasa watched in dread as every Rider ceased into nothing.

"Tsukasa…." He turned around to see Kiva-La was clutching her stomach and limping. "I don't feel so good." She dropped her sword and fell into Tsukasa's arms as she dusted away.

"N-Natsumi?!" He fell to his knees as the last couple Riders were gone, he was all that was left.

"How does it feel Tsukasa…? Dark Decade walked in front of Tsukasa and kicked him in the chest. Tsukasa fell on his back and looked at his hands to see he was slowly going as well. "Finally, you've lost, and I won. Guess you could say I was better than dear ole dad."

"Wait….are you not…?"

"Oh you thought I was your alternate reality self…?" Dark Decade forced his foot onto Decade's chest as the magenta Rider lost most of his legs. "Happy birthday to me…..happy birthday to me….."

"You know you won't win; my son will stop you."

"And how could he do that? I erased every single Rider that could give him the powers needed…."

"There's still one Riderverse untouched, was gonna save it as a surprise but you gone and ruined it." Tsukasa began to chuckle which pissed Dark Decade off.

"Hurry up and die already…." He raised his foot and stomped it onto Decade's chest, reducing him to nothing. He stood there for a second, before he threw his head back and unleashed an angered yell.

"There it is, we're here." Yusuke said as the three made it to a building called Hikari Studios.

"Wait, this is the studio where mom and dad used to live." Shiro recognised. "Why are we here of all places?"

"I'll explain later. Now let's…" Yusuke was about to open the door, if not for him noticing his body turning to dust. "Oh no…"

"Oh my god!" Kari covered her mouth in shock as Shiro tried to grab Yusuke, but his hand just went through the dust.

"Get inside, find him…" Were his last words.

Shiro and Kari stood there in disbelief as the last bit of dust flew away.

"I….I guess we should go inside." Shiro broke the silence before they went inside the building. "Geez, I remember being here when we were six. Wonder if it's still a mess."

After walking through the main hallway, they entered the living room which looked better than ever.

"Yep, total dump." Kari joked as the two looked around the area.

"This place is cleaner than clean." Shiro ran his fingers across a table. "Not a single speck."

"The food's also a dead giveaway, this pizza's still warm." Kari said as she picked up a slice.

"Okay well, we're supposed to look for some guy living here. You check the upstairs and I'll look around here." She nodded and headed upstairs while Shiro looked around more.

He walked up to a semi empty desk and saw a framed photo. He picked it up and immediately recognised most of the people in it. It was his mom, dad, Yusuke, Daiki, and someone he'd never seen before.

"You've got thirty seconds to explain what you're doing in my home." Shiro felt a gun press against his back. "Put the photo down and turn around slowly."

He did as so and looked at the figure sticking him up. It was a person donned in black and green armour. The helmet looks like that of a monster, with fangs resembling the eyes, claw like designs on the wrists and boots. In fact, the whole body looked like to be designed after a monster.

"Now I'm gonna ask this once kid, who are you?" He asked.

"Um, who are you?"

"Answering a question with a question I see. That's dumb, considering I have a gun aimed at your head."

"And I got one aimed at yours." Kari said as she came out of nowhere and pointed her Neo-DienDriver at his helmet. "Now stand down."

"Oh so there's two of you eh?" The green guy seemed not worried whatsoever. "Well seems here like we got ourselves a Mexican Standoff."

"Hey-hey-hey let's calm down here." Shiro tried the ease the tension. "My name's Shiro Kadoya and this is my friend Kari Kaitou."

"Wait a minute…..Kadoya…..Kaitou?" The green guy looked between Shiro and Kari. "Oh I remember you guys!" He slung his arms around the teens and brought them into a hug. "Oh how much you've grown!"

"Just who are you?" Shiro asked as he and Kari escaped his grasp.

"Wow you really don't remember me. I guess it's cause I'm mostly in my armour nowadays. I'm a friend of Tsukasa's, call me Kamen Rider Kaijin." He introduced. "So what brings you kids to my humble abode?" He asked as he sat down on a sofa and opened a bottle of beer.

"My dad sent us here cause he said you could help with a problem."

"What problem, got some tricky math homework?" He chuckled and drank his beer through his helmet.

"No, Tsukasa sent us here because of some guy that had similar armour to him." Kari explained, which stopped Kaijin from drinking.

"What he grey and dark blue?" They nodded. Kaijin put his drink on a table and but a hand over where his mouth would. "Was there anyone with you when you got here?"

"Yeah Yusuke, but he turned to dust as soon as we reached the door." Shiro said.

"Then we're out of time." Kaijin stood up and walked over to a wall to feel it, as if looking for something.

"Out of time?"

"Shiro I'm sorry to say this, but your parents and every other Rider in this world are gone." He didn't remove his visor from the wall.

"Wait what?!"

"The one that attacked today, his name is Dark Decade. And if I'm right, he just turned every single Rider, both good and evil, into dust."

"Why would he do such a thing?" Kari asked wide eyes.

"His one goal is to eliminate all Riders, and now it seems he has. Well, not yet." He pressed a part of the wall which revealed a hidden compartment, which was a photo background. "Your father wanted to keep this a surprise for when you turned eighteen and when your training was complete. But desperate times call for desperate measures."

He walked over a piece of cloth and pulled it away, revealing a chain.

"What are we supposed to do? We're just three Riders, two of which have only fought today." Shiro said, sounding like he was going to give up.

"What we do; is go on a little vacation. As you know, Tsukasa and Natsumi went travelling through nine different worlds to stop the great Rider War."

"Yeah." The teens nodded.

"Well what if I told you that there are even more worlds out there to explore, and that's exactly what we're gonna do." Kaijin clapped. "Somewhere in this Multiverse there are eighteen different Alternate Realities for us to visit and gain the Riders' power before Dark Decade can."

"Well why can't you do it?" Shiro asked accusingly.

"My power is limited boyo, besides only the powers of Decade and Diend can duplicate a Rider's power." Kaijin explained. "This may be the only way to bring back all the Riders. I can only do this if you want to, so how about it?"

"We don't really have a choice Shiro." Kari put a hand on the brunette's shoulder. He looked at the Neo-DecaDriver in his hand, and each symbol surrounding it.

"Alright," He sighed. "Where do we begin?"

"Atta boy!" Kaijin laughed and motioned to the chain. "Just pull this and our destination is set!"

Shiro walked over to said chain and gave it a powerful yank. A picture fell down behind them and the three Riders took a good look at it.

"Tell me kids, what do see?"

Shiro and Kari looked carefully at the picture. It showed two plastic bottles, one red and the other blue with four random things around them. A red rose, a white snowflake, a black cat, and a yellow fire.

"The red and blue things, those are Full Bottles; the same that Sento uses." Shiro pointed out.

"Yeah but the other stuff seems a bit weird. A rose, a snowflake, a cat and a fire, what's that about?" Kari asked.

"You were right about the first thing; yes we are in the world of Kamen Rider Build. But the other things are about what Realm it's in." Kaijin started to pace in front of them. "You see each Rider World isn't on their own, they are crossed over with what I've dubbed a Realm. Shiro, Kari, this is the world of Kamen Rider Build and RWBY."

Elsewhere, a certain team of four girls and a goggle head were in class. Until the goggle head had a strange gut feeling.

A/N: Hoh boy, that dusting scene. Can't wait to see the reaction to that.

But anyway this has been the first chapter of The New Decade-No Worlds To Go To. So with nothing else I'll see ya in the next chapter.

BYE, BYE.