A/N: Hey everyone, MDD here with another new story! For those of you who were waiting for me to update my Final Fantasy 9 fic... Sorry, I had to put that one on hold due to writer's block. Once I get things sorted out I'll get back to it, I promise. It's a story I really want to do. Anyway, this is probably going to be an odd story for any of you reading it. If you want to understand what happens at the beginning portion, I'd suggest looking up my Let's Play of InuYasha: Secret of the Cursed Mask on my YouTube channel (the name of which is on my profile page). The video might look like crap due to being direct recording, but I had no idea what I was supposed to use at the time and just used what I had. Anyway, I'll say right now that not a whole lot happens in this chapter other than introductions, but that's because it's the first chapter. Characters gotta meet and go through some explanations and such. Everything will pick up starting next chapter. So without further delay, I bring to you the first chapter of "Keyblade of the Onmyouji"!

Disclaimer: I do not own InuYasha or Kingdom Hearts. They both rightfully belong to Rumiko Takahashi and Tetsuya Nomura respectively.

Chapter 1: Hollow Bastion 1

(Feudal Era – Japan)

Deep in the forest of Kururugi Village, a battle is nearing its end between the group of Inuyasha, Kagome Higurashi, Shippo, Miroku, Sango, and their newest friend, Michiru Kururugi, against the evil demon Naraku. Both sides have suffered great injury after the demon absorbed Utsugi, Michiru's ancestor, and took his Shikigami power. Even the Flower Bloomer, a sword crafted by Totosai which the demon blacksmith himself gave to Michiru, didn't have much effect against Naraku. In a last-ditch effort to finish Naraku for good, Michiru pooled his remaining strength as the onmyouji boy clasped his hands together and silently prayed.

'Help me out, Shikigami,' the teen boy chanted in his mind as a blue aura of Shikigami power erupted around him. "Here it comes, Inuyasha!"

Michiru then held out his right arm as the blue flames converged to his palm, creating a red orb of Shikigami that the boy then threw towards the white-haired half demon.

"Got it!" Inuyasha said in understanding as he held out his sword, the Tessaiga, to catch the Shikigami orb, which then surrounded the blade in blue mystical energy. "This time you're going down, Naraku!"

"I think not!" the evil demon countered as multiple tentacles shot out from his back and sped towards Inuyasha.

The half demon held his sword at an angle, deflecting some of the tentacles before cutting them apart and then rushed towards Naraku with his empowered weapon. Naraku shot more tentacles towards the red-garbed dog demon, but Inuyasha evaded, deflected, and slashed the tentacles apart. As Inuyasha drew closer, the half demon leapt to the air with his sword raised. Naraku could only look up with eyes widened in fear; likely the first time he had ever experienced the emotion.

"Die!" Inuyasha shouted as he swung the Tessaiga down with all his strength, cleaving Naraku in two.

Even as his body was cut in half, Naraku's face still held a look of fear as Michiru's residual Shikigami magic burned the demon's body away, preventing him from ever regenerating again until there was nothing left…

"We did it!" Inuyasha cheered as he slowly raised his sword again and held it over his shoulders.

"We really did it!" Michiru followed with awe in his voice.

"Did we really destroy him this time?" Shippo wondered, given how many times the group had been led to believe the evil demon had been killed before.

"It's finally over. Kohaku will be fine now," Sango said with a relaxed happiness in her voice.

"You can pay for your sins in hell, Naraku!" Miroku cursed the defeated demon.

"It took us a long time to get here. A long time…" Kagome said with relief.

Then, appearing on the ground where Naraku had disappeared, Utsugi's body had reformed lying on his back. Without waiting for fully recover their strength, the group of six rushed over to the fallen onmyouji master with Michiru kneeling by his ancestor's side.

"Utsugi!" Michiru cried out as he placed a hand on his ancestor's shoulder.

"Aaaa… aaaa…." Utsugi groaned weakly.

"Utsugi, hang on, Utsugi!" Michiru pleaded, but then noticed a red stain on Utsugi's hakama. "Red blood? You've become human?"

"What?" Utsugi questioned, his voice still weak before looking down at the red stain.

"It is the art of Soul Infusion," Miroku explained.

"Did Kakuju say anything about that?" Kagome asked, referring to the old woman, who was another of Michiru's ancestor's and partner to Utsugi, who had been killed by a giant failed hitogata of Utsugi not long before the battle against Naraku.

"Yes," Miroku answered with a nod. "Using a secret power, she must have put her soul into the amulet."

"So, she…" Inuyasha trailed off as Michiru placed his hand over the amulet around his neck with a somber expression on his face.

"Kakuju? I understand…" Utsugi said, finally knowing why he was unable to take Michiru's soul when he attempted the Soul Infusion, then turned his weak gaze to the onmyouji boy by his side. "Instead of taking your soul, I took her soul, that was inside the amulet."

"Hang in there, Utsugi," Michiru pleaded as he placed his hand back on his ancestor's arm.

"I can die as a human now. With the soul of the woman I love," Utsugi said with finality as a weak smile spread across his lips. "I'm happy now. Thank you."

"Utsugi…" Michiru said, understanding what his ancestor meant but not wanting to believe it as the teen fought back tears. "Don't go! I finally realized I can understand you."

"They say it is a blessed thing to have your grandchild next to you when you die. But to have your great-great-grandchild is also a great blessing," Utsugi said to his descendant.

"Don't talk anymore, Utsugi," Michiru requested to try and get his ancestor to save his strength so he could recover.

"I have one last request," Utsugi said to Michiru. "Please bury me in the Kururugi Cemetery."

Everyone then watched as a faint glow in Utsugi's chest slowly faded away.

"Utsugi, are you planning on taking the shard of the Sacred Jewel?" Michiru questioned. "You can't! If that disappears…"

"It's too late," Utsugi said as he slowly shook his head. "If I'm going to die, I want to die as a human."

"You're going to live as a human being!" Michiru retorted in an attempt to stop his ancestor as tears began to fall from the boy's face.

"It's no good. I can't live like this again…" Utsugi said, his face seemingly contorting to a look of pain as he imagined the possible reality of his next words. "Under Naraku's control."

"But…" Michiru trailed off as he tried to find some way of convincing his ancestor until he felt a hand on his shoulder, prompting the boy to turn his attention to the owner of the hand. "Kagome…"

"You should understand," Kagome said with a twinge of sorrow in her voice.

"Please…" Utsugi nearly begged as Michiru was forced to bite his tongue.

"The Kururugi Cemetery, right?" Kagome repeated the name of where Utsugi wished to be laid to rest with a soft tone of voice.

"Please," Utsugi said with another weak smile and a nod of appreciation.

"Utsugi…" Michiru started to sob as tears continued to flow down his cheeks.

"It's my last request to you…" the onmyouji master said to his descendant as Michiru continued to sob before drying his eyes with his arm.

"Okay," Michiru agreed sadly. "Good-bye, Utsugi."

"Kakuju…" Utsugi said with his last breath before his body went limp in his descendant's arms.

"Utsugi…" Michiru said quietly to his deceased ancestor before turning his attention to Kagome. "Would you help me?"

The priestess nodded once, "Of course."

As Michiru lifted Utsugi's body in both arms, the two teens made their way to the village's cemetery where they began to bury the onmyouji master while the others stood back and watched in silence. Once the deed was done, the two silently prayed before Kagome spoke up.

"He looks peaceful," the teenage girl said to try and brighten Michiru's mood.

"Yes," the boy agreed, but was still saddened by the loss. "Kakuju, be happy, with Utsugi."

Suddenly, Michiru's body was being surrounded by light.

"Hey…" Kagome gasped with surprise.

"What is this?" Michiru questioned as he looked himself over.

"Is it because Utsugi's magic has disappeared?" Sango wondered.

"Then, you're going back to our time…?" Kagome asked, referring to the modern era.

"Kagome…" Michiru's voice trailed off.

"W-wait! This is too sudden!" Kagome said in a futile attempt of keeping Michiru from returning by himself.

"Kagome, it's time to say goodbye for now," Michiru tried to calm down the girl he cared for most as the light intensified.

"You're here and gone in a moment's notice," Kagome said, trying hard to fight back tears.

"This is it, Kagome. I want to tell you something before I go," Michiru said, wanting to let out his true feelings before it was too late while the light surrounding him intensified more.

"What?" Kagome asked, wanting to know what the boy wanted to say.

"Kagome, I…" Michiru trailed off as his voice and body disappeared in the intense light.

When the light disappeared, Michiru was gone.

"Michiru…" Kagome said softly as she took one step towards where the boy had been standing with one hand against her chest.

"I'm certain he's returned to his time now," Miroku said, sad that a friend had to leave so soon before them.

"Do you think he'll ever come back?" Shippo asked.

"I don't know," Sango replied. "If he can still use his Shikigami in his own time, who knows what could happen."

"I'm sure he'll be able to find some way to do it," Inuyasha spoke up with confidence. "For the time he's been with us he's proven to be a resourceful kid. I wouldn't be surprised if he found some way to get back."

"And on the bright side, Kagome should be able to meet up with him in their time," Miroku pointed out.

"You're right," Kagome said quietly with a soft smile and a firm nod. "I'm sure we'll all see him again."

(Unknown)

A beam of light shot down from the sky for a brief moment and then faded away, leaving Michiru Kururugi behind as the boy was left lying on his stomach. After a couple seconds, the teen's fingers twitched and he slowly pushed himself up.

"Where am I?" Michiru thought aloud as he placed one hand on his head before quickly pulling it away. "Hey wait, now I remember!"

Michiru quickly looked up and checked his surrounded, but a look of shock soon fell on his face.

"But then… what is this place?" Michiru wondered as he looked around at the ground and walls of stone, damaged houses that appeared to be in the process of being rebuilt, and bronze pipes sticking out of the walls. "Wasn't I supposed to go home? I definitely don't recognize this place."

Then a sound caught Michiru's attention. The boy quickly looked around for the source of the noise until a strange creature with a slender, silver body appeared in front of him.

"Whoa!" Michiru cried out as he fell on his backside. "What is this? Some kind of demon?"

Seemingly out of nowhere, four more of the silver creatures appeared near the first as if materializing out of thin air.

"If these are demons, then…" Michiru muttered to himself before pushing himself to his feet. "I'll have to fight!"

As if reacting to Michiru's words, the five creatures started to twitch uncontrollably before lunging towards the boy. Michiru barely had enough time to dive out of the way from the speed of these creatures.

"These things are fast. I'd better be careful," the onmyouji told himself as he held out his right hand. "Shikigami, please help!"

A red orb of Shikigami appeared in Michiru's hand before the boy threw it at one of the silver creatures like a baseball. The orb struck its target, but aside from being knocked back a bit the creature appeared unharmed.

"What the? Since when could a demon resist my Shikigami that much?" Michiru wondered before shaking his head and a red pentagram slowly appeared under the boy's feet. "Oh flame, burning bright! Turn into a sword of wrath! Raging Flame!"

The young onmyouji then held his right arm in front of him, his hand open and fingers spread, as the pentagram beneath him faded and a red katana made of pure Shikigami materialized in his hand. Just as Michiru grasped the weapon's hilt, the five silver creatures lunged at him again. The teen countered with a few swings of his Shikigami sword, but quickly noticed that his attacks were only making the creatures back off and weren't doing any damage.

"What the heck is going on? My Shikigami has never let me down," Michiru questioned, his attention turned to the magic sword he was holding.

Unfortunately that moment of distraction was just what the creatures needed as all five of them lunged at Michiru once more and struck the boy while his guard was down. Crying out in pain, Michiru was sent back-first into the stone wall, the pain causing him to lose his Shikigami sword.

"Ow… These things are strong…" Michiru groaned in pain as he placed his left hand on his chest where one of the creatures struck hardest.

Michiru then quickly looked up and saw the creatures moving in on him, knowing he was done for if his only method of fighting was no longer effective.

"Hey, over here!" Michiru heard someone's voice call out and, along with the silver creatures, turned his attention in the direction of the voice.

Running towards the onmyouji and the five creatures was a young boy wearing a strange set of clothes of mostly black and silver with some red, blue and yellow, oversized black and yellow shoes, spiked brown hair and blue eyes. Next to the boy were two… demons? One looked like a white-feathered duck wearing a blue shirt and hat while the other appeared to be some kind of dog with long, drooping ears wearing a green, long-sleeved turtleneck sweater under an open black vest with baggy yellow pants and large steel-toed shoes. The duck creature was carrying a large stick adorned with a strange purple hat while the dog creature held a round shield with an odd design of three circles in the center that gave the appearance of some kind of mouse. The human boy though wielded the most bizarre weapon that Michiru had ever seen; an oversized key with a silver shaft and teeth shaped like some kind of crown and a gold rain guard.

As if reacting to the boy's weapon, the five silver creatures completely ignored Michiru and charged towards the new group of three. Michiru watched as the three fought off the creatures; the duck using his stick – which Michiru finally figured out to be a staff – to cast magic, the dog using his shield to knock the creatures away, and the brown-haired boy using his key weapon like a sword.

"Sora!" another voice called out, a young woman's this time, as another weapon flew around and struck down some of the silver creatures.

The brown-haired boy and Michiru turned their attention to the direction of the voice to see a teenage girl with short black hair garbed in a black tank-top with a white Hawaiian flowered design underneath a sleeveless dark-gray vest, black khaki shorts, black shoes and a black headband.

"Yuffie!" the brown-haired boy, now identified to Michiru as Sora, called out happily to the girl as she raised her right hand and caught the weapon that had been flying around, now revealed to be a giant four-sided shuriken.

"We can chat later! Let's take care of these things first!" the girl, Yuffie, said as she readied her weapon again.

"Right!" Sora agreed as he pulled his key-shaped sword to his side in a ready stance.

'Darn it, I should help them. But I'm not strong enough…' Michiru thought to himself before remembering he had a item that could increase his Shikigami power, to which he dug a hand into his pants pocket and pulled out a small circular trinket with a red star engraved in the center. 'I hope this works.' "Shikigami, please help!"

Michiru then held his arm towards one of the silver creatures, hoping that the strengthened shot of Shikigami would at least do some damage. But what happened was something Michiru would've never expected; the Shikigami Disc started to glow!

"What the?!" Michiru gasped in surprise as the glowing light drew everyone's attention away from the fight.

"What's that?" the dog-like creature wondered.

The light grew brighter, momentarily blinding everyone but the silver creatures. When the light faded, Michiru was now holding a weapon similar to the one used by Sora, but with an oddly familiar appearance to the young onmyouji; though the primary color of the overall weapon was red, the shaft also had entwining colors of blue, green and white along the shaft. The teeth of the oversized key were shaped like the red star from the Shikigami Disc and the pentagram that had appeared when Michiru materialized his Shikigami sword. The rain guard was a mix of red, green and blue with designs of flames, wind and water respectively while the handle was pure white. The keychain token looked exactly like the Shikigami Disc while the chain itself was pure white, similar to the handle.

"What is this thing?" Michiru asked, completely dumbfounded.

"A Keyblade?" the duck creature wondered.

In response to both Michiru's new weapon and the creature's words, one of the silver creatures lunged at Michiru again.

"Wah! Stay back!" Michiru cried out as he swung the weapon, destroying the enemy of contact much to the onmyouji's surprise. "W-what?"

"Let's finish them off, guys!" Sora exclaimed as the boy charged at another of the silver creatures, swinging his weapon and destroying the creature.

Yuffie and the dog creature threw their weapons at the silver creatures while the duck creature cast another spell, destroying the remaining three creatures.

"What the heck is going on?" Michiru thought aloud as he looked over the strange weapon in his hand.

"Hey, you okay?" Sora's voice asked as Michiru looked away from his new weapon to see the boy, dog and duck run up to him, though Sora now seemed to be lacking his weapon.

"Uh, yeah. I guess," Michiru answered. "What kind of demons were those?"

"Demons?" Sora repeated with confusion. "Those are Nobodies."

"No… bodies?" Michiru slowly repeated.

"How is he able to use a Keyblade?" the duck creature directed his question to Sora. "The only ones who can use one are you and the King."

"Don't forget that Riku used a Keyblade, too," the dog creature corrected the duck.

"What's a Keyblade?" Michiru asked, completely confused by the situation.

"Um, well… It's kind of hard to explain," Sora replied as he rubbed the back of his head, then decided to introduce himself. "By the way, my name's Sora."

"Donald Duck," the duck creature greeted.

"The name's Goofy," the dog creature said.

"I'm Michiru. Michiru Kururugi," the onmyouji boy greeted himself.

"Hey, Sora! If you're done making new friends for the moment…" Yuffie's voice called out, drawing the group's attention to her as she jumped down from the roof of a building. "I see you're still in top form."

"What'd you expect?" Sora retorted with a bit of a laugh as the boy struck his fist to his chest. "Looks like you're doing okay."

"Well, what did you expect?" Yuffie countered.

"How are the others?" Donald asked.

"Great!" Yuffie answered cheerfully before turning to face Michiru. "Though you're a new face. I don't think I've seen you around here before."

"Um, well…" Michiru trailed off as he scratched the back of his head.

"Hey, Yuffie. Have you seen the King and Riku?" Sora asked the ninja girl.

"Nope," Yuffie said casually before walking off as Sora hung his head in disappointment, but the girl stopped and turned back around. "But I had a feeling I'd see you three again."

Sora lifted his head to look at the girl with a smile, but then changed to a serious expression as he raised his right hand, "We may never meet again, but we'll never forget each other."

Even though he had parted from them not long ago, Michiru couldn't help but remember his friends from the Feudal Era as a small smile crept on his face.

"Is that supposed to be Leon?" Yuffie laughed a bit while Donald and Goofy laughed out loud. "Everybody's working on stuff over at Merlin's house. C'mon!"

With that, Yuffie ran down the street again and out of view. Sora then turned his attention to Michiru.

"Why don't you come with us?" Sora offered.

"That might be a good idea. I don't have a clue about what's going on," Michiru accepted, still holding his new Keyblade weapon.

"Leon and the others should be able to help you out," Goofy suggested.

"And it'll be more comfortable to talk indoors instead of out in the street," Sora pointed out, to which Michiru nodded in agreement.

"Let's go and meet the others," Donald said, seemingly anxious to get moving.

Sora and Michiru nodded together as the onmyouji followed the group of three through the stone-paved streets until they reached a house. But as the group of four walked closer to the building, three dark spots appeared on the ground and began to take form.

"What's going on?" Michiru asked as the shadows became three small, black creatures with yellow eyes. "More of those Nobodies?"

"Heartless!" Sora corrected as his Keyblade appeared in the boy's hands again. "Come on, Michiru!"

"Uh, right!" the onmyouji paused for a moment, not entirely sure of what to do before opting to follow Sora's lead.

As the two ran towards the Heartless, the creatures dispersed to keep away from the Keyblades. Seeing this, Goofy ran around to cut one of them off and keep it from escaping.

"Thunder!" Donald shouted as he raised his staff, causing a bolt of lightning to fall onto one of the small Heartless and caused it to explode into a dark mist.

Sora had chased after the Heartless that was being blocked by Goofy, the small creature continuously bashing itself against Goofy's shield while Michiru went after the third Heartless, which had managed to back itself into a corner. The onmyouji boy, however, seemed reluctant in attacking the small creature as its head continued to twitch around.

"Why are you just standing there!?" Donald shouted, startling Michiru.

"What's wrong, Michiru?" Sora asked as he ran up to the onmyouji.

"Nothing, I just…" Michiru just trailed off as he turned to face his new companion.

While Michiru was distracted, the Heartless took the opportunity to attack by jumping at the onmyouji. Seeing this, Sora quickly swung his Keyblade, destroying the Heartless and leaving Michiru stunned.

"Sorry about that," Sora quickly apologized as his Keyblade disappeared again. "But why didn't you destroy the Heartless?"

"It… didn't seem right," Michiru answered honestly. "It's not like they attacked us first."

"But if we don't destroy the Heartless, they'll overrun this world," Goofy pointed out.

'The world?' Michiru repeated in his head, his eyes widened his shock. "They're already that widespread? How can you guys hope to accomplish that by yourselves?"

"The Heartless have appeared on more than just this world. We've fought them before but they just keep coming," Donald said in annoyance.

"More than this…" Michiru quietly repeated to himself, his voice trailing off. 'So these guys travel to different worlds? But that can't be possible, can it? No modern space craft could be that fast.'

"Well since it was just those three small ones, I'd say we're in the clear for now," Sora said. "Come on, let's head inside and meet the others."

As Sora, Donald and Goofy walked up to the door of the house, Michiru trailed behind as he thought to himself.

'So after defeating Naraku, instead of going home I was sent somewhere else. I have something called a Keyblade…' Michiru momentarily glanced at the weapon still in his hand. 'And there are monsters called Nobodies and Heartless and those three are apparently able to go to other worlds. Darn it, I just want to find out how to get back home.'

Michiru then followed his three companions into the house where, at the other side of the building, were three other humans, two men and one woman. One of the men was sitting at a computer while the other man and the woman were watching over him. Yuffie then jumped out from a corner to greet the group of four.

"Meet the Hollow Bastion Restoration Committee!" Yuffie greeted them while also somewhat introducing them to the other three in the room, who all turned away from the computer monitor to see who Yuffie was talking to.

"We missed you!" greeted the woman, who had long, braided brown hair, green eyes and wore a dress of pink and white.

"Well, if you ain't in top shape," said the man who was sitting at the computer, who had short blonde hair, wearing a white t-shirt, blue pants and a yellow sash around his waist while smoking a cigarette.

"I knew it," the other man said, who had long brown hair and wore a white shirt under an open black, short-sleeved jacket and black pants.

"Knew what?" Sora inquired as he, Donald and Goofy walked towards the group with Michiru trailing behind slowly while looking around the rather small house.

"A while back, everyone suddenly remembered you guys, all at the same time," the brown-haired man answered.

"You… remembered?" Sora repeated slowly. "Wait! Does that mean you forgot about us!?"

"Thanks!" Donald said ungratefully.

"So where've you guys been all this time?" Yuffie asked.

"We were sleepin'," Goofy answered honesly.

"Where? In cold storage?" the blonde man joked.

"It doesn't matter," the woman said softly. "This is great. Everyone's together again!"

"So, um… we're trying to find Riku and the King. Have you seen 'em?" Sora inquired, but to his disappointment, the three shook their heads, causing the boy to sigh. "Right."

"Sorry," the woman apologized. "But let us know if there's anything we can do to help. Okay?"

"Okay. Thanks," Sora said with a quick nod.

"Speaking of helping…" the brown-haired man said slowly as he turned his attention to Michiru, who was still looking around. "Can we help you?"

"Huh?" Michiru finally spoke up as he turned around to face everyone else. "Oh, sorry."

"Who're you anyway? Never seen you before," the blonde man said.

"His name's Michiru. We just met him outside when we met Yuffie," Sora answered for the onmyouji.

"Yes, I think Yuffie mentioned that," the woman said before introducing herself. "My name is Aerith."

"Name's Cid," the blonde introduced himself.

"Just call me Leon," said the brown-haired man.

"Uh, nice to meet you," Michiru greeted with a bow.

"Heh. Kid sure knows his manners, that's for sure," Cid said with a short laugh, but then noticed what Michiru was holding. "What the? He's got a Keyblade?"

That definitely drew Aerith's and Leon's attention as they gazed at the weapon in the boy's hand. Michiru could only glance down at his Keyblade and look back up at the three adults in confusion.

"You're right, it is," Leon confirmed. "But how did he get a hold of one?"

"Is it really that big a deal? I mean I have one and so does the King," Sora pointed out.

"Not just anyone can have a Keyblade, Sora," Aerith explained softly. "The Keyblades choose their masters."

"So that must mean this kid is worth a bigger whoop than we might think if he's got one," Cid said.

"I don't even know how I got this thing," Michiru stated. "Sora, Donald, and Goofy were trying to save me and then it just appeared in my hand."

"Well if you travel with Sora, maybe you'll find out why it picked you," Leon suggested.

"But there's only room for three on the Gummi Ship," Donald pointed out.

"Hey, you realize who you're in the presence of?" Cid questioned. "If you leave it to me, I can fix that ship of yours up. Might take a bit though."

"Thanks Cid!" Sora said, but Cid practically jumped up from his seat and walked up to Sora, punching his fist into his palm.

"Hey now, don't go thankin' us just yet," Cid warned.

"Hollow Bastion's got a problem. A big problem," Leon said.

"You mean, like Nobodies? And Heartless?" Sora asked.

"That's right!" Yuffie answered.

"Sounds like you could use our help," Sora offered.

"Then let's cut to the chase," Leon accepted as he walked up to Sora and took a glance towards Michiru. "Sora, Donald, Goofy, Michiru. We were hoping the four of you might give us a hand around here."

Sora just bumped his fist into his chest, "Like we're gonna say no?"

Leon couldn't help but crack a smile, "…I forgot who I'm dealing with."

"If it'll help me learn about this Keyblade thing, then sure. I'll lend a hand," Michiru said as he walked up to the group.

"We'll take all the help we can get," Yuffie said as Leon walked over to the door and opened it before turning back to face the group.

"Follow me to the bailey— there's something you need to see," Leon said before walking out.

But just as the man left, a puff of smoke appeared in the doorway and from it appeared an old man with a long white beard garbed in blue.

"Oh! I thought it was you. Right on time!" the old man greeted to Sora, Donald, and Goofy before noticing Michiru. "Oh, and you've brought a new friend."

"It's Merlin!" Donald shouted ecstatically as Sora, Donald, and Goofy walked towards the old man with Michiru once again following behind.

"Sora and the gang said they're gonna help out!" Yuffie told the old wizard.

"Splendid! We'll count on you!" Merlin said cheerfully.

"Right," Donald and Goofy said in unison as they nodded.

"Ah, yes. Did you give them the cards, dear?" Merlin directed his question to Aerith.

"Oh!" the woman gasped as she dug into a pocket in her dress and pulled out some cards. "Here… they're presents for you. Leon thought you might like to have them."

Once Aerith handed the cards to Sora, the boy looked them over and seemed happy by what was on it, "Hollow Bastion Restoration Committee Honorary Member! And they have our names on them!"

"Membership cards!" Donald exclaimed.

"Kinda cool, huh?" Goofy said.

"Unfortunately we don't have one for you at the moment, but once you're done with Leon we'll work on one for you," Aerith said to Michiru.

"Oh, thank you very much," Michiru said with a polite bow.

"We're supposed to meet him at the bailey, right?" Sora asked. "Let's get going."

Just as the group of four was about to leave the house, Merlin decided to stop Michiru.

"Pardon me, my lad. I couldn't help but notice you have a Keyblade," Merlin said.

"Is it really that important?" Michiru asked as he held the weapon up a bit.

"Of course it is," Merlin answered. "Now, I'm sure you need to hurry along, but once you get back, I'll try to answer whatever questions you might have."

"Really?" Michiru asked, his eyes widened with hope. "Thank you, I'll take you up on that offer once we're back."

With another bow, Michiru ran out the door to catch up with Sora and the others.

After leaving Merlin's home, Michiru caught up with Sora, Donald, and Goofy and the four of them walked up the nearby stone stairs and into the bailey, where they saw Leon leaning against the far wall. When Leon saw the group of four getting closer, he pushed himself off the wall and looked through the balcony.

"Look at that," Leon said as the group of four now stood next to him, following the man's gaze.

In the distance was a large castle-like structure, and at the base it appeared to be surrounded by either black water or what must have been millions of Heartless.

"We want to restore Hollow Bastion to what it used to be," Leon explained. "Who knows—maybe even something better. There's still a lot to do, but I'm sure we can handle everything— Except… for that…" Leon then pointed down to an area not far from the castle structure. "…and that."

Looking down, the ground of four saw two of the Dusk Nobodies casually walking towards the structure in the distance. Sora then turned his attention to Leon.

"We'll handle 'em," the boy assured the man.

"Well, that's good to hear," Leon said. "So Sora—do you know what's going on, then?"

That question piqued Michiru's interest as the onmyouji boy turned his attention towards Sora and Leon to overhear their conversation.

"There's this guy, Pete, who's been going around plotting with the Heartless," Sora started his explanation. "But he's not smart enough to tie his own shoes. The ones we need to worry about are the Nobodies."

"And those Organization XIII guys in charge, too!" Goofy added.

'Pete? Organization XIII? Why is it that I'm somehow reminded of Naraku?' Michiru thought to himself.

"You called?" a deep voice asked, earning the attention of the five present.

After looking around inside the bailey for the voice, Sora was the first to run out towards another set of stairs with Donald, Goofy, and Michiru close behind.

"You're doing well," another voice complimented, to which Sora summoned his Keyblade.

"Who's that!?" Sora demanded.

"This calls for a celebration…" the first voice said as four of the Dusk Nobodies appeared out of thin air.

"These guy are the Nobodies, right?" Michiru asked, wanting to make sure he wasn't getting them and the Heartless confused again.

"Right," Sora answered. "Goofy and Donald, you two get the ones on the stairs. Michiru, Leon, and I will handle the other ones."

"Got it," Sora's two companions agreed as Donald and Goofy readied their weapons and charged down the stairs with Sora, Michiru, and Leon heading back into the bailey after the other two Nobodies.

"Don't let them through the gate!" Leon warned the Keyblade bearers.

"Right!" Sora and Michiru answered together as Michiru charged on ahead with Sora jumping over the two Nobodies to cut them off.

The two Keyblade wielders charged right at the Dusks and struck them in a pincer attack, destroying them in the combination attack.

"Looks like you're getting the hang of fighting with a Keyblade," Sora remarked.

"Let's just say I've had a lot of practice with a sword," Michiru said.

"Get ready, here comes more!" Leon warned as a few more Nobodies appeared from thin air, a couple of them opting to attack Leon while the other two continued walking towards the Key-bearers.

"Is that all?" Sora questioned as he aimed his Keyblade at one of the Nobodies. "Deep Freeze!"

Firing from the tip of the key was a spear of ice that flew through the air and impaled the Nobody and destroyed it instantly.

"Whoa," Michiru said in awe. "Is that some kind of spiritual attack?"

"Nope, magic," Sora answered shortly. "You got any?"

Michiru thought back to when he was first attacked by the Nobodies and his Shikigami had no effect on them.

'But maybe…' Michiru thought to himself as he glanced at the Keyblade in his right hand before holding out his left arm. "Shikigami, attack!"

A red orb of Shikigami materialized into Michiru's hand and the boy threw it at the Nobody. Unfortunately the creature was able to dodge it, but not completely as the orb struck its side and effectively blew off a portion of its body.

"Whoa!" Michiru shouted in surprise. 'I guess this Keyblade has a similar effect as the Shikigami Disc.'

Charging from the other side of the bailey, Leon cut down the damaged Nobody with his rather oddly-designed sword after dealing with the two that had gone after him. The swordsman then ran between Sora and Michiru and stood by them.

"I don't think we're done yet," Leon said as, once again, more Nobodies materialized.

This time though, instead of Dusks, these Nobodies had different appearances. Two of them – to Michiru at least – looked like they'd fit in well in the Feudal Era with their samurai-styled builds. The other eight Nobodies were smaller than the Dusks, but frequently changed forms into some kind of bird, a sword, and an octagonal shield.

"They just don't give up," Sora said with a hint of irritation.

"I think I can take care of them," Michiru offered.

"Can you?" Leon asked, glancing at the onmyouji boy with a raised eyebrow.

"Not sure. But I'm going to try," Michiru said as he closed his eyes to concentrate, the red pentagram from before circling under his feet. "Oh flame, burning bright! Shine your judgment upon us! Flame of Judgment!"

Michiru gripped the handle of his Keyblade with both hands as he aimed the tip of the weapon at the oncoming Nobodies. In an instant, a large sphere of red Shikigami was fired from the tip of the Keyblade right at the group of Nobodies. The Samurai Nobodies, unfortunately, jumped back far enough to avoid the blast as the other, smaller Nobodies were caught in the resulting explosion.

"Whoa, that's cool!" Sora exclaimed.

"What kind of magic was that?" Leon asked.

"It's not magic," Michiru answered. "It's the power of Shikigami."

The three swordsmen had to grit their teeth in disappointment though as not all of the smaller Nobodies were destroyed. Some of them had changed to their shield forms, which must have been able to protect them from the blast. Not only that but the two Samurai Nobodies had closed in once the explosion had settled down.

"Let's finish them off then!" Sora said with Leon and Michiru nodding in agreement.

The three of them charged ahead with their weapons, attacking the smaller Nobodies when they changed out of their shield forms and destroying them with ease. The two Samurai Nobodies, however, proved to be more challenging, able to use not only their two swords but even their sheaths to attack and defend.

"This isn't working," Leon growled in annoyance as the three swordsmen were forced to back away.

Michiru quickly looked over the two approaching opponents and then glanced at the sheathed sword on the left side of his waist with hesitation, "You two focus on one of them. I'll try to handle the other."

"What? Are you sure?" Sora asked out of concern.

"At the least I can keep the other one off you guys while you take on the other," Michiru assured as he placed his left hand on the hilt of his sheathed sword. "Like I said, I've had practice with a sword. So I wouldn't be without one now would I?"

There was a moment of silence between the three until Leon spoke up, "If you think you can handle yourself, then go ahead. But if you get in trouble, you better back down."

"Right," Michiru said as he grabbed hold of the sheathed sword's hilt. 'Flower Bloomer won't work if its wielder intends to do harm. It's a sword meant for the pure of heart. Totosai, once again, I thank you for offering me this sword and I promise to treat it with respect.'

With his Keyblade in his right hand, Michiru slowly drew his sword – a beautifully crafted tsurugi-style Japanese sword – from its sheath and held it in a defensive posture, a sense of purity emanating from the blade. The three swordsmen then charged at the two Nobodies with Sora and Leon focusing on one while Michiru went after the other to act as a distraction. While Sora and Leon were able to get some quick and easy attacks in due to being two-on-one, Michiru and his Nobody opponent found themselves countering each other's attacks with their sword and Keyblade. Mentally thanking Sango and Inuyasha in helping him to use the Flower Bloomer in battle, which in turn allowed him to use his Raging Flame power more easily, Michiru continued to trade blows with the Samurai Nobody until the onmyouji found an opening and struck the creature with both weapons, forcing the creature to fall back from the injury. Unfortunately, the constant trading and countering of sword strikes, along with using Flame of Judgment, left Michiru exhausted. As he prepared to defend himself from the Nobody's next attack, Michiru lowered his guard when he saw the creature was destroyed from an attack by Sora.

"You okay, Michiru?" Sora asked.

"Yeah, just a little tired I guess," the onmyouji answered as he put Flower Bloomer back into its sheath. 'Plus I still haven't recovered properly after we defeated Naraku. I'm surprised I could go on this far without some rest.'

"The Keyblade…a truly marvelous weapon," the deep voice spoke up again, which must have meant the Nobodies in the area were destroyed, including the ones Donald and Goofy went after. "Were it only in more…capable hands…"

In response to the voice, which was followed by a small chorus of laughs, Sora, Michiru, and Leon ran out of the bailey, meeting back up with Donald and Goofy to try and find the owner of the voice.

"Show yourselves!" Sora demanded.

As if in compliance, a figure in a dark robe appeared on top of an adjacent platform from a dark portal of some kind. The figure then raised its arms and soon five more figures wearing the same robes joined it from dark portals of their own.

"Organization XIII!" Goofy exclaimed with surprise.

'I can sense… something impure about them…' Michiru thought to himself as he stared at the robed figures as Sora nodded to Donald and Goofy before facing the figures again.

"Good. Now let's settle this!" the Key-bearer declared.

"What a shame…" the first figure mockingly sighed. "And here I thought we could be friends."

All six of the figures then proceeded to laugh before vanishing into dark portals as Donald shouted after them, "Stop!"

Donald then tried to chase after the figures by heading for the stairs, but was cut off when a dark portal appeared in front of the duck as Sora, Goofy, and Michiru ran to Donald's side. Emerging from the portal was one of the robed figures. Confused, Donald looked to the nearby platform to see the robed figures were no longer there.

"What's the big idea!?" Donald questioned.

"Oopsy-daisy!" the figure said in a rather relaxed, carefree tone.

"Move!" Sora demanded.

"Now do you think that's polite, shutting me down like that?" the figure asked.

"Considering you guys just sent those Nobodies to attack us, should we have any reason to be polite to you?" Michiru questioned, only to have the figure stare at the boy – or at Michiru's Keyblade rather – and then promptly ignoring the onmyouji.

"I said get outta the way!" Sora demanded again.

"As if! You can talk all you want, it won't change a thing," the figure said nonchalantly.

"Then we're gonna make you move!" Donald challenged as he, Sora, Goofy, and Michiru prepared to fight again.

"See, that would work—if I were just any old dude," the figure said, not feeling the least bit intimidated. "'Cept I'm not. I'm with the Organization. Nothing "any old" about me."

"Ha!" Sora scoffed. "Tough talk for someone who stood on the sidelines while his Nobody flunkeys did the fighting!"

"Oh, dear," the figure sighed. "I think you got the wrong impression."

"You gonna cry?" Sora attempted to mock the Organization member.

"As if! Why don't I remind you how tough the crowd you're dealing with really is?" the robed figure offered.

"Remind me?" Sora asked in confusion but then resumed to glare at the figure, which strangely caused him to laugh.

"That's right, he used to give me that same exact look," the figure said, this time confusing everyone.

"I guess you think you can psych me out by saying really random stuff!"

"Gee… I just don't know," the figure said, but Michiru could tell the robed figure was hiding something from the tone of voice while the Organization member spread his arms out, leaving himself wide open to an attack, but then lowered his arms when no one bothered to attack him. "Be a good boy now!"

With that, another dark portal appeared behind the figure.

"Wait!" Donald called after the figure, leaping towards the portal as the figure walked into it and closing it behind him, causing Donald to land face-first into the ground. "Nuts! He got away!"

"That was weird," Sora said, earning everyone's attention. "Who gave him the same look?"

"Y'know, I think he was just tryin' to confuse ya," Goofy figured.

"Yeah, you're right. Only one me!" Sora agreed.

"Maybe… But that doesn't mean there can't be someone who looks like you," Michiru said.

"Huh? You know something?" Sora wondered.

Michiru just shook his head, "No. But I've experienced it before. Someone who looked like me committed a crime, so when I was in the area all the blame was shifted to me as a result."

"I see…" Sora said as he thought on the matter for a moment before digging into his pocket and pulling out the membership card Aerith had given him and held it up, reading the back of the card aloud. "The Hollow Bastion Restoration Committee Honorary Member—"

Sora then suddenly gasped as the card began to glow, leaving Donald and Goofy in awe.

'Now what's going on?' Michiru wondered in his head as the card just hovered in mid-air while the tip of Sora's Keyblade gave off a similar glow.

"What's this?" Leon inquired.

"Gawrsh, ya think…?" Goofy trailed off as the membership card rose higher into the air and Sora aimed his Keyblade at the ground.

Suddenly, a crown-shaped design appeared under Sora's feet and also gave off a similar glow as the card and Sora's Keyblade as a strange energy wrapped around the Key-bearer. A beam of light then shot up to the sky from the card and caused a keyhole to appear. Seeing the keyhole, Sora leapt back, swung his Keyblade around, and then pointed it at the keyhole as a thin beam was fired from the tip right into the keyhole, causing it to disappear with the sound of a turning lock.

"Ohh…now I get it," Sora said, to which Michiru could only tilt his head in confusion. "That must've been the gate Yen Sid talked about."

"Oh boy!" Donald cheered.

Sora then quickly turned around to face Leon, "Sorry to run, Leon, but other worlds are calling."

Leon nodded in understanding, "Organization XIII… They look tough. Be careful out there."

Donald and Goofy nodded and Sora replied, "See you soon."

"But make sure you check with Cid about your Gummi Ship before you leave," Leon reminded, motioning towards Michiru as Sora, Donald, and Goofy turned around to face their new comrade.

"Oh, right," Sora said sheepishly. "I almost forgot we needed to make some extra room for you."

"No, I understand. I don't think I can imagine the kind of excitement you have, being able to visit other worlds," Michiru said. "Plus I need to talk to Merlin and see if I can get some answers."

"Right. We'll head back to Merlin's, speak with him, and check on the Gummi Ship before we head off," Sora listed off.

"Thank you for letting me accompany you, Sora," Michiru said with a thankful bow. "I promise to not be a burden."

"With how you handled yourself against those Nobodies, I think you'll do just fine as long as you stick with Sora," Leon said. "Now you four had better get going."

"Right," all four answered together as they nodded in unison before heading back to Merlin's.

A/N: So that takes care of the opening chapter. As for how I plan to have the story go forward, I'll have each chapter take place on the various worlds the group explores, so each chapter will be the length of that world. If a world is visited multiple times, I'll put numbers next to the name of the world in the chapter title. That's really about it, so I hope you all enjoy this crossover story of mine.