Disclaimer: I don't own Fullmetal Alchemist Brotherhood or Attack on Titan.
CHAPTER 1: The Fullmetal Alchemist
Alchemy. The arts of reconstruction and deconstruction. This is not an all powerful art. You can not create something out of nothing. That is why there is a taboo; you can not do human transmutation. For what is equal value to a human soul?
It was a dark and starry night in wall Sina. Down an alleyway, a man was drawing a circle with a piece of chalk. He was cackling darkly.
"I will make sure that there's nothing left of the evil…nothing left…" he muttered. He stopped when he heard footsteps. He turned and a girl with charcoal eyes, black silky hair, wearing a long, dark green cloak, and a maroon scarf, stood there.
"What do you think you're doing?" she asked.
"Who are you?" the man asked.
"Answer me first and I'll consider telling you," she said.
"I am saving this country! Your name?" the man asked.
"I said I'd CONSIDER telling you. And you will have to come with me," she said.
"Sorry but that's not happening," he said, opening a bottle of water and placing his hand on the ground. The water became icicles and spiraled towards Mikasa. Mikasa put her right arm in front of her and the ice shattered.
"Impossible! It should have pierced through your arm!" he said.
"To people with normal arms, yes," Mikasa said, pulling back her sleeve. His eyes widened.
"An automail arm huh? Tch," he said. He turned and ran the opposite way.
"Now Eren!"
Suddenly, a man in a suit of armor jumped out and blocked his way.
"Oh! I know who you two are! A girl with an automail arm and a man in armor! You are the Fullmetal Alchemist!" he said.
"We could make this easy if you surrender now," Eren said. The man laughed.
"In your dreams! I am going to save this country if it's the last thing I do!" he said. There was a puddle next to Eren and he made it boil and go into Eren's armor. The man looked taken aback when Eren didn't scream in agony.
"Aren't you burning up?!" he asked. Mikasa kicked him over from behind and held him down.
"AAAGH! What?! That hurt a LOT!" he said. Mikasa pulled up her leg pant too.
"An automail leg too?!" he exclaimed.
"Eren, help me get this guy to prison," Mikasa said.
"Okay," Eren said, walking over. Little did Eren and Mikasa know, Mikasa had kicked so hard he was bleeding. And about 70% of your body is made of water.
The man used his blood and turned it into a blade. He tried to slice Mikasa but she dodged. The man ran off.
"Hey!" Eren shouted. The two went after him.
The man ran into another alleyway and drew another alchemy circle. Mikasa caught up to him. Suddenly, every circle he drew glowed. It made a loop around the military headquarters. Mikasa suddenly realized that it was a huge alchemy circle.
These huge ice walls appeared and began closing in on the military headquarters. Mikasa realized that he was trying to freeze it over.
The man used his own blood to make a way up on top of the ice wall. Mikasa and Eren followed. The man used his blood to make a spear and threw it at Eren. It knocked his head off. But the suit of armor…was empty. Eren picked up his head and put it back on.
"Oh…I've figured it out…you are missing your arm and leg and he's missing his body…you committed the ultimate taboo! Human transformation!" he said with a terrifying grin.
She was bleeding from her missing arm. Her eyes widened when she saw the grotesque THINGS that was supposed to be his mom and her mom. They were bleeding, and their bones were on the outside of the body. One shakily reached out it's hands, and then it's arm collapsed as it died.
"N-no…this wasn't supposed to happen…Eren…! No…!" she muttered in horror, as she looked at the empty clothes on the ground.
She crawled over to a fallen suit of armor. Tears were streaming down her face as she pulled off the helmet of the armor.
"No…not him too…he's the only family I have left…my only reason…to live in this cruel world…" she said, absentmindedly glancing at her maroon scarf.
"Take my leg…take my other arm…take my heart…I don't care…just bring him back…" she said as she drew an alchemy circle out of her own blood on the inside of the armor. Her leg suddenly disintegrated and the armor came to life. She collapsed all the way to the floor.
Mikasa's expression darkened.
"There's a thing called 'going too far,'" Mikasa said. She charged at him at incredible speed, her metal arm turning into a blade as she ran. She sliced and sliced but he dodged her attacks. That's when Eren sliced his arm from behind.
"Give up!" Eren yelled.
"No!" Suddenly, a man with black hair, and white gloves with alchemy circles on them, jumped onto the wall.
"I think you should come with me," he said.
"Ah! It's the flame alchemist, colonel Mustang!" the man said.
"Yes, and I will be the one to take you down!" Mustang said. Right then it began to rain.
"Ha! Water beats fire! I guess you're out of luck!" he said as Mustang attempted to use fire alchemy. It was no use. Suddenly, a man (a very tall and buff one,) made a part of the ground a huge heavy ball with alchemy, and sent it flying at the man. It hit him off the wall. The buff man used his alchemy to stop the ice wall.
"No! No! I'm trying to save this country!" the man argued as he was pulled into a police car with handcuffs on. They drove away.
"Good work keeping him distracted, Fullmetal," Mustang's bodyguard, Riza Hawkeye, said. Mikasa and Eren saluted.
"That's our duty as soldiers," Eren and Mikasa said. Riza smiled and walked off. Eren and Mikasa walked off toward their inn.