OK well, here goes, my first crossover. This should be interesting...
Please note, the story line from both animes will be a little inaccurate so that I can put them together.
"This is interesting, it looks like #1 and #2 are the only ones left, but I don't think they're going to off eachother and win the game."
"Well, Deus, what do you propose then?"
"Perhaps an interesting twist. Any suggestions?"
"What if Yuno were to think someone killed Yuki?"
"Yes, that seems like a fantastic idea. Any old civilian will do, no?"
"Yes, but sir, what about those 2 brothers who have been coming closer to Japan? I hear their quest will bring them very close to you, and that could be problematic."
"You're right, how about we make one of them the victim of #2?"
"Yes sir, I'll get right on that."
"And Muru?"
"Yes, Deus?"
"Let's move Yuno to Amestris, rather than bring the brothers here."
"If course, Deus."
"THIS IS UNACCEPTABLE, ELRIC."
"Jeez, Mustang, what's the big problem?"
"The PROBLEM, Ed, is that NOW Hughes is going to bitch at ME about his daughter's birthday, and NOT focus on the rebellion!"
"Rebellion?!" Al interjected, "WHAT REBELLION?"
"Didn't Edward tell you? Ishval is rebelling again after Scar used himself as a transmutation circle to kill Bradley."
"Yeah, and since Hughes is occupied with his daughter, ol' Mustang here has to coordinate every troop from Southern, Northern, and Eastern Command."
"And your brother's job was to assist Hughes and get it over with, so he could return to his duties. So not only am I covering for half of Maes' work, he's ALSO pestering me for Lisa's birthday. AND YOU TWO IDIOTS ARE GETTING READY TO GO TO JAPAN FOR A DIARY THAT SUPPOSEDLY IS THE PHILOSPHER'S STONE! WHAT KIND OF CHILDREN ARE YOU?!"
"Relax sir," Said Hawkeye as she entered his office, "This is probably not going to end productively for the boys either way, and how often does someone in the military get to leave the country? Let them go."
"Riza, since when do-"
"THEN IT'S SETTLED! I'M OUTTA HERE." Ed then transmuted a cannon launching both him and his brother out of the room, and leaving a huge hole in the wall. Ed landed only to find his brother's armor inside a trash can. Bulls eye! Ed though with a laugh.
After Ed finally got his brother standing upright, he noticed a little girl coming around the corner, a taller girl with her.
"Ed..." Al whispered, "I've never seen anyone in Amestris with purple or pink hair before... Who are they?"
"I dunno... maybe they're tourists..."
"Yuno! That's them!" Shouted the shorter one with purple hair, "The short one is the guy who killed Yuki!"
"Wait, Ed, you did wh-"
"WHO YOU CALLIN' SO SMALL HE CAN RIDE A CICADA AS IF IT WERE A DRAGON?! I'll show you!" Ed ran towards the little tan girl, but was stopped in his tracks when the taller, pink haired girl punched him 15 meters away from his target.
"What the- Ed! What just happened?"
"Ugh... I don't even know, Al." Ed climbed out of the wall he was smashed into and transmuted his auto-mail into his signature blade. "What's the big idea?" Ed started walking towards them when he realized the shorter girl was gone, and the taller one was already withing arms reach. He crouched to avoid the punch and clapped his hands together to transmute a stone pillar to fling himself away, but Yuno was too fast, and slid-kicked him right in the face. Again, Ed went flying. This gave Al enough time to transmute the wall into a pillar to knock Yuno into the street. Yuno reacted by back flipping onto the wall, and propelling herself at Alphonse. The force of her punch this time was enough to knock off the front half of Al's torso. Yuno turned around for a follow up after she'd landed, but froze when she saw that Al was empty.
"Surprised?" Yelled Ed as he descended from the rooftop onto Yuno with a giant hammer. She dodged the blow and went to punch Ed, which he reacted to by flip-kicking Yuno off the ground, and Alphonse coming around and uppercutting Yuno right before she landed. Ed then grabbed Al's foot, transmuting his into a spear, and throwing him at Yuno. However, she was too good a fighter, and grabbed Al-spear in the air. She used him to stop herself from slamming in to the wall, and again to launch herself back at Ed, leaving Alphonse 30 feet off the ground, useless to the fight.
"Ed how is this helping?!"
"It was a good idea in my head!"
"Yeah, I can see that! Just don't die!"
While Ed and Al were bickering, Yuno checked Yuki's diary.
May 4th, 9:04pm: Riza shoots Yuka in the head with a well- aimed sniper rifle.
Yuna looked at the time, 9:02. The second it hit 9:03, Yuna counted to 54 seconds, and saw Ed coming at her. She dodged just in the nick of time. Riza's shot landed right on Ed's auto-mail, shattering it.
"WHAT THE HELL?!" Before Ed had time to react, Yuna roundhouse kicked him into the wall. She was about to finish it, when Yuna thought she felt a presence. She jumped away right before the area where she was standing exploded in flames.
"Damn." Yuna looked to a heroic figure with white gloves. The situation was getting bad, but if she could take him out, she could still win. Unfortunately her plan was halted when the ground shattered to Armstrong's ground slam. This was too much, Yuna had to flee. She jumped onto the pillar Al had made earlier in the fight, jumped up at Al-spear, and used him as a flag pole to propel herself onto the roof, and disappeared.
After the 5 militants cleaned up the mess, they headed back to Central command to discuss this new threat.
"So, Ed. Who was that? Not just some girl getting revenge for your perverted actions, I assume."
"Shaddup. I don't know who it was."
"Actually sir," Alphonse interjected, "There were two of them. There was a shorter one with purple hair that had told the one we were fighting that Ed had killed someone named Yuki. That's what caused the attack."
"Hmm, interesting. Hawkeye, do a search on this, 'Yuki.'"
"On it." Hawkeye saluted and left the room. Right as she left the phone rang.
"Mustang." Roy answered. Right after he'd answered the phone, he made an irritated face. "It's for you Ed."
"EDWARD ELRIC YOU ARE A RENOWNED STATE ALCHEMIST, HOW IN THE WORLD DID YOU LOSE TO A GIRL?!" Hughes was screaming into Ed's ears. How the hell does he already know? Ed noticed Armstrong sneak out of the room. Ed sighed and replied to Maes, "I'll tell you later," and hung up.
Yuno was sitting in an apartment, the TV set to a cooking channel. There was a pool of blood seeping from the closet, and she was sitting on the ground at the foot of the Queen bed. Yuno took out her diary and looked at the single entry that marked her and Yuki's union. Though now, it would never come to pass. Yuno sighed and put her diary away, only to take out Yuki's. Right as she went to look at it, a little boy came into the room.
"Mommy I... wait, you're not my mommy... who are you?" The kid walked up to Yuno. "Why is your hair pink? That's really weird..." Yuno looked up from her diary at the small child standing next to her. He couldn't be more than 8 or 9 years old.
"Where's mommy and daddy?"
"Dead."
"Don't joke silly girl, mommy said she would always be around until I didn't want her."
"Well your mommy's not here and there's nothing you can do about it."
"Well lady, you're here. Can't you do something?"
"Yeah, I guess I can." Yuno punched into the little boy's chest, and ripped out his heart, which she dropped onto the little dead boy's chest. She looked back down at Yuki's diary and flipped it open.
May 5th, 1:23am: Yuno d-
Right before Yuno finished reading the entry, the diary changed.
May 6th, 5:46pm: Edward and Alphonse are fighting after they get themselves repaired. Yuno gasps at this, and scrolls up in the diary. May 5th, 7:14pm, Edward and Alphonse depart for Risembool to get repairs.
"Looks like my friends have a mechanic. Why go so long? What do they have to return to?" Yuno spent the next 12 hours looking into who these two morons were. Reading book after book, asking question after question, until finally she realized, This, Winry, must be pretty dear to the brothers, and according to Mr. Tucker, he's even quite fond of her. Sounds perfect.
Whilst returning to 'her apartment' Yuno was plotting on the most sinister way to get revenge, and she knew that Winry was the key. She boarded the first train that evening that she could catch, arriving in Risembool at midnight on May 6th.