A little heads up, I don't play Final Fantasy games. The only one I played was Final Fantasy 7. So I don't know much about the FF characters outside of Kingdom hearts. I'm mostly following what I know from the games.

Chapter VII- Traverse town (Part 2)

Riku begrudgingly woke up and found himself in a strange new land. It was a place with floating rocks and rising waterfalls. His jaw dropped at the scenery.

When he wanted to see the outside world, this is more or less what he was expecting, something new! But then he remembered that his friends were missing.

"Sora, Koga, Kairi!" Riku called out. The only sound besides the echo of his voice was the rushing of the water.

Quickly realizing that his friends were nowhere to be seen Riku decided to look around for something, anything. He hopped over the floating rocks. Some floated up and down like a lift. When he got to higher ground he spotted someone under a crumbled archway. Their back was turned but they wore a long delicate black cloak and had horns on their head. She had a ominous presence to her but Riku didn't flinch once at her aura. There was also this black crow watching him.

"Hey, who are you?" Riku asked rudely.

The woman slowly turned and eyed the boy with her bright piercing yellow eyes. A small smile stretched her green skin.

"Well, well this is quite a sight..."

"Wake up you lazy bum!"

Sora groaned and once more that day found himself waking up after being knocked unconscious. On the bright side he felt himself laying on something cozy this time. He was in some kind of fancy green bedroom. It looked like a hotel room.

And standing over the edge of the bed he saw... Kairi!? She was standing in front of him, examining him.

"You okay?"

"...I guess." Sora mumbled still half asleep. He noticed something holding onto him. He looked next to him and saw his brother Koga with his arms wrapped tightly around him. "Koga!"

"Mmm ten more minutes mom..." Koga whined snuggling deeper into Sora's chest.

"Koga wake up!" Sora shook Koga until he grumbled and sat up. As he yawned and rubbed his eyes he looked at Sora and his eyes widened.

"SORA!" Koga cried when he tackled his brother into another hug. Sora smiled and patted his affectionate twin brother on the back.

"It's alright bro, we're together now."

"I was worried we got separated after the storm." Koga said separating from Sora. He wiped the tears from his face.

"Ahem." Sora and Koga turned to Kairi, forgetting she was there.

"Those creatures were after the Keyblade. They're afraid of it, so they try to destroy it's wielder and take their heart. That's what they're really after. Your heart."

"I'm so glad you're okay Kairi." Sora said. Koga looked at him puzzled.

"Kairi, who's Kairi? I'm the great ninja Yuffie." She said, he voice changing in the middle of the sentence.

Sora tilted his head and rubbed his eyes. He reopened his eyes again and saw someone else in Kairi's place. It was a woman with black hair and a headband on her head. She was leaning in close, examining him.

"Oh." Sora said, rubbing his head.

"Are you okay Sora?" Koga asked putting a hand on his shoulder.

"I think you went a little too far Squall." Yuffie said. Sora and Koga noticed the guy that was leaning against the wall in the back. It was the guy that attacked Sora.

"That's Leon." He said.

"You!" Koga shouted trying to get up.

"Whoa whoa, easy there kid!" Yuffie said, sitting him back down.

"He tried to kill my brother!" Koga said angrily.

"No, he was trying to help him." Yuffie said. "Besides I don't think there is much the two of you can do without your Keyblades." She pointed next to Leon and saw that their Keyblades were standing there.

"The Keyblade." Koga said calming down from his anger.

"Yeah, we had to get them away from you to escape those creatures. It turns out that's how they were tracking you." She stated.

"It was the only way to conceal your heart from them. But that won't work for long." Leon picked up both of the Keyblades. "Still, it's hard to believe that you're both chosen wielders." He flicked his wrists and in a flash both the Keyblades went back to their owners. Koga's turned back into it's gun form.

"Well I suppose beggars can't be choosers." He said.

Koga tried lifting his Keyblade only for him to drop it clutching his arm.

"Koga, are you okay?" Sora asked concerned.

"I don't know Sora. I was fighting those guys earlier. There was so many of them and well, I'm not as skilled at fighting as you and Riku. I had to flee but one of them got me hard." He said going through his backpack to see if he packed any bandages. He pulled out the weird vial he got from Pongo.

"Why don't you use the potion?"

Everyone turned to the door and saw a woman with brown hair and a long pink dress come in. Sora turned to Koga and saw that he was blushing slightly.

"E-eh what, potion?" He stammered.

"That vial you are holding. It's a potion it can heal you." She said as she walked up and took the potion. "Here, watch this." She opened the top and tossed the contents over Koga. He glowed green for a moment before it dissipated.

Koga felt his arm. "It's healed! Wow, thank you..."

"Aerith, my name is Aerith. We we're waiting for you to finally come!"

"Hey, what are you talking about?!" Sora asked getting frustrated. "First we get knocked out then you act nice and friendly. Can you start making sense?"

Koga looked back at the others with a serious look. "My brother is right. We need an explanation. What's going on here?"

"Oh boy, this is going to be something to explain. You mind doing the honors Aerith?" Yuffie asked.

Aerith nodded then sat down on a nearby chair. She looked them both in the eyes. "Okay, so you know their are other world out there besides this town and yours right?"

"We figured as much." Koga said. "But I feel like it's not something that is commonly known..."

"No, they were supposed to be a secret because they've never been connected. Until now that is, when the Heartless came, everything changed." She said with a sad expression.

"The Heartless?" Sora asked.

"You mean those things that attacked me?" Koga asked. He fumbled through his bag and pulled out a picture of one of the Shadows.

"Yep, those are the ones." Yuffie said, sitting next to Koga.

"Those without hearts." Leon said, walking closer to the group.

"I assume that's why they're called Heartless?" Koga asked sarcastically.

"Right, they are attracted to the darkness that's in people's hearts."

"And they're is darkness in every heart." Aerith said. "Good people, bad people, it doesn't matter. The heartless seek them out and try to take their hearts, and once a person loses their heart, they to become a heartless."

"Sounds like they're everywhere." Koga said.

"You have no idea..." Leon sighed. "But we hope that you can help us with that."

"I guess you mean this?" Sora picked up his weapon. "The Keyblade, what even is this?"

"I think it's a blade in the shape of a key." Koga answered, not realizing how condescending that sounded.

Sora pouted. "I meant why is it so special!"

"Let me explain it to you like this. The Heartless, even the weakest of them are tougher than any regular person. They can be killed using any weapon but they won't truly disappear. Eventually they will reform somewhere else and attack again. The only thing that can completely destroy them is the Keyblade. The Heartless fear such a weapon, that's why they will hunt you down no matter what." Leon said.

"Hey, we didn't ask for this!" Sora complained.

"The Keyblade chooses it's master, and it chose the both of you."

"So tough luck." Leon said waving his hand dismissively.

"This... this is a lot to take in." Sora said. He tried to think about all that was said. Heartless, Keyblades, Darkness, it was a lot to take in. I mean, they aren't legendary warriors, we're just two kids who lived on a isl- Sora's eyes widened as he turned to Koga. "Wait, Koga. The Heartless are the ones that attacked the Islands! Riku, Kairi, Mom, and everyone else were grabbed by the darkness. We have to help them!"

"Sora hold on!" Koga grabbed his brother by the arm. "We have no idea where they are, there are hundreds of worlds out there. And countless Heartless to boot, all going to want to fight us. Are you sure you want to go out there?"

"We have to find our friends!" He said with no hesitation.

Koga sighed and stood up. "Then I'm going with you."

"Koga you don't have to do this." Sora said.

"Yes I do, Sora I promised someone I would look after you. And if that means following you into danger then so be it."

"I... Thank you bro."

Koga smiled and nodded. He turned to Leon and the others. "So let's get started. What's first?"

"First you should know the basics of using a Keyblade."

"Yeah speaking of which, what's with my Keyblade looking like a gun?" Koga asked.

"That's a simple answer." Leon said. "Keyblades can change their appearance and form to best fit their master. It's not heard of but it's not impossible."

"Well back at home I preferred using slingshots over swords or sticks."

"So it changed to a ranged weapon so it would better suit you. It may take practice but you will be able to switch between it's Gun form and Blade form."

"Cool." Koga looked at his weapon. "I'm still calling it a Keyblade, 'Keygun' just doesn't roll off the tongue."

"Another thing you should know. Keyblades can open locks." Aerith said.

"Um... duh, that goes without saying." Sora sweatdropped.

"She means it can open up to any lock!" Yuffie said. She pointed to the nearby chest. "Here try it out on that chest."

"Uh okay." Sora said as he got up and went to the chest. It had a tiny keyhole on it's front, way to small to fit the Keyblade. He tried tapping it with the tip of the Keyblade. Instantly it clicked and opened up.

"Oh wow!" Koga looked in awe.

"Keep in mind, the Heartless will always find you sooner or later. You best be ready when that comes." Leon said.

Sora and Koga looked at each other nervously.

"Think of it as a adventure."

"Heh, adventure across the worlds fighting the darkness. That sounds like quite a story." Koga chuckled through his fear. He took a big gulp and nodded. "Alright I'm ready."

"Me too!" Sora said.

"Good then lets get you to the King's men, they should be in this world by n-"

"Leon!" Yuffie shouted. Across the room a Soldier appeared out of a dark ball. Koga jumped in alarm and shot at it out of reflex. The blast hit it but it only caused the armored Heartless to stagger. Sora got into a battle stance, Keyblade ready.

"Yuffie, Aerith, go!" Leon shouted. The two girls nodded and fled through the door. Leon pulled out his sword. "Sora, Koga, let's go!" He said as he swung his sword at the Soldier. He hit it with enough force to make it crash through the hotel window. Sora followed Leon's lead and jumped out the window and into the alleyway. There, there was more Soldiers waiting for them. Koga followed to, falling onto a Soldier but not before he blasted it several times. He saw another one approaching him and he quickly pistol whipped it with the butt of his gun. Sora then slashed at the Heartless destroying it.

"Don't worry about the small fry!" Leon said, taking out three Soldiers with a swipe of his blade. "Take out the leader and the others will leave, for now."

"Where do we look?" Koga asked, keeping his eyes on the enemy.

"You two check the Third district. And stay together!" Sora watched Leon fight all the Heartless. Remembering his fight against him, Leon isn't fast (though that's not fair given he's carrying that big heavy sword) but he's strong and agile. He swings like a skilled swordsman with years of experience. These Soldiers fall from one swing of his blade while Sora and Koga can only take one out with several hits. But when one of the two take them out, a heart escapes the dissipating body and vanishes into a grey ball of thorns. He didn't think much of that.

"Wait, where are you going?"

"I gotta help the people over in the First district!"

"But-"

"You two are the only ones who can stop this. I'm no help to you guys."

"We got this bro." Sora gave a thumbs up. Koga nodded feeling reassured.

"Good luck guys!" Leon said as he ran off into the horde of Heartless.

"So, which way to the Third District?"

"I saw a door that said Third District earlier! Follow me!" Koga said as the two of them took off.

I decided to remove the part where Donald and Goofy run into Aerith, because I find the jump cuts kinda annoying.

Also I always wondered how Potions, Ethers, and Elixers worked. You just toss it in the air and it instantly heals all wounds? What if you get your arm cut off, does it just grows back instantly? What's the chemical structure of a Potion? WHERE'S MY SCIENCE!?

Concerning how Keyblades work, I think it makes sense that they can change their form during battle. That's really emphasized in KH3 where you can use Formchange to turn your Keyblade into a shield, guns, hammer, yo-yo's, even an actual sword! In Birth by sleep, the Keyblades are still Keyblades but it's like they are altered to match their user's fighting styles.

I don't think in the game it's explained how Leon and the other's know to expect Donald and Goofy as well as the Keyblade. I guess Mickey visited Traverse Town ahead of time and gave them a heads up. Ehh, it's best not to think too much about it...

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HAVE FUN!