Summary: This will be an ongoing crossover between Fullmetal Alchemist Brotherhood and Kingdom Hearts. The setting will be in the Fullmetal Alchemist world, taking place after the Promise Day. As for the Kingdom Hearts side of things, Sora and Kairi will have been spit out by the universe into Amestris. Sora will be looking for Kairi with Ed's help. Ed and Winry will be around 18 years of age and Sora and Kairi around 13-14. For Sora and Kairi, this will be taking place after the story of Kingdom Hearts 2.

Pairings: Ed x Winry, Sora x Kairi

Rating: R/M (18+) this will be an ongoing romance/adventure story and I am sure that there will be some moderate language and sexual themes.

Chapter One

"I'll be home before you know it, Winry." Edward kissed her cheek, and tried to ignore the worry he saw in her eyes. "I promise. I will come home in one piece."

Winry swallowed hard. "Please be careful."

Edward sighed and took her hands into his. "I'm just going to Rush Valley. On an errand for you, no less! You worry too much." Edward kissed both of her hands, and then her lips before heading down the porch stairs.

"Make sure you get those modifications to Paninya in one piece, Edward Elric! I swear, if I hear that you did something to damage my precious automail, I'll-"

"Goodbye, Winry!" Edward laughed, starting his walk to the train station of his hometown.

Edward had fallen asleep on the train, and was woken up by the loud whistle as they arrived at their first stop; South City. He yawned, looking out the window as we waited for passengers to get on and get off, so he could continue his journey.

As he was waiting for the train to leave the station, he saw something that he'd certainly never seen before- even being one of the dogs of the military. A young boy was walking nervously up the aisle of the train, carrying what looked to be a giant key. The key was golden and nearly as tall as the boy. The boy was dressed strangely- his hair was spiked and his pants were baggy, his feet looked too big for his body, and his jacket was decorated in a fashion Ed had never seen.

"Hey, kid." He motioned to the boy. "Come here."

The young boy glanced around to make sure Ed was talking to him, and then approached him.

"Did you transmute that yourself?" Ed asked him.

"Did I…transmute…" The boy mumbled, shifting his weight and looking at the ground.

"Yeah, that giant key. Did you transmute it on your own?"

"I…I didn't make it. It's my keyblade."

Ed looked at him, perplexed. "Hey, sit down." He motioned to the seat across from him.

The boy sat across from Edward, sitting his "keyblade" on the seat next to him.

"Are you an alchemist?" Edward pressed on, dying to know more about this boy's key contraption.

"I…I don't think so..?"

Edward was confused. This boy didn't look like he fit in here at all, and he seemed to be very confused himself. Not to mention, he didn't even know what alchemy was. As Ed was ready to ask more questions, he heard a question directed at him from the train attendant walking the aisle. "May I see your tickets, please?"

Ed handed the attendant his round-trip ticket from Resembool to Rush Valley, and was given it back with a "thank you" after it was approved by the man.

"And your ticket, son?"

The boy looked up at the attendant and stammered "I-I don't have one. I'm sorry."

"Well then, young man, you can't ride the train if you don't have a ticket! Come with me."

"Wait a second," Ed said, reaching into his pocket. "Here." He handed the attendant a few notes. "That should cover his ticket, right?"

The attendant glanced at the boy, then back at Ed. "Yes, I supposed it should," He shoved the notes in his pocket and carried on to the next booth.

"Thank you." The boy said. "I didn't have any money, so I couldn't get a ticket."

Ed looked at the boy curiously. "What's your name?"

"Sora."

Edward's expression became more curious; what an odd name. "And where are you from?"

"I'm from Destiny Islands."

Now Edward was beyond perplexed. "Is that…far from Amestris?"

Sora shrugged. "I don't know where Amestris is."

Ed was so confused, he thought his head might explode. "So, let me get this straight: You have this giant key that you didn't make with alchemy, you don't even know what alchemy is, and you don't even know where you are?" Ed didn't mean to sound so coarse, but the expression on Sora's face showed that he may have raised his voice in frustration.

"I-I'm sorry." Sora stammered. "I just woke up here. The last thing I remember, I was home with Kairi and Riku."

"Kairi…And Riku? Who are they?"

"They're my friends."

Ed scratched his head. "Do you know where they are now?"

Sora shook his head. "No. I hope I can find them. But I don't see anyone I recognize here. Not Donald or Goofy-"

"Who are Donald and Goofy?"

"They're my friends too. I met them and we helped King Mickey together."

Edward's mouth dropped a bit. "You know a king?"

Sora nodded.

"And your friend's name is…Goofy?"

Sora nodded again.

Ed was starting to think that maybe this boy was crazy, or his friends' were imaginary. "Uh, how old are you?"

"I'm fifteen."

"Okay, well…" The wheels in Edward's head were spinning out of control. He couldn't just leave this kid to fend for himself when he was so confused. "You don't know where you're going, so why don't you stick with me until we find your friends?"

Sora's face brightened. "I-okay. Thank you, mister…"

"Edward. Just call me Edward…But, I'm also known as the Fullmetal Alchemist." Edward said with a grin, leaning back in his seat.

Chapter 2