Title: A Change of Fate

Author: ShadowTrooper1414/FireFox9995

Rating: T

Pairings: None

Summary: Two weeks after the end of the Holy War, Allen Walker is de-aged to a ten year old and transported to another dimension without her memories. She's picked up off the streets by a certain Shiro Fujimoto and taken in. What will this unheard of change of events hold for our white haired hero?

Warnings/Notes: Probably cussing(because Rin), AU, Neah, unlikely circumstances

Disclaimer: I own neither DGM or Blue Exorcist. I'm just writing this for your entertainment, and my own.

A white haired girl opened her eyes to see an a blur of brown. It focused into a ceiling a few moments later. She moved his eyes slightly to the left, mind groggy and unable to remember much. Above her, she saw a head of light gray hair and red eyes hidden behind orange-tinted glasses. He was probably younger than he looked, his late thirties at the most.

"Mng…" the girl let out. "What happened...?"

"You're awake, huh?" the man asked, a soft smile taking over his face. "I'm Shiro Fujimoto. I found you on the side of the street, covering with bruises, scrapes, and cuts. What's your name?"

"I… can't seem to remember." the white haired girl murmured.

"Well, a little sleep might help that." Shiro responded, standing. "Sweet dreams, little one."

The girl felt her bangs be brushed to the side before the man walked away, the floorboards creaking under his booted feet. The sound of a door opening and being closed sounded before the young female closed her eyes to fall into the grasp of sleep once again.

"What's wrong?" a young male's voice sounded.

"Who's there?" the girl asked.

"My, my, Allen." the voice again. "It's seems silly that you'd forget, even after we achieved peace together."

"Who are you?" the white-haired girl - Allen? - demanded.

"Ah, how rude of me." A form faded into existence from shadows. It was a young boy with dark gray, brownish skin, seven black crosses across his forehead, the center one the largest and the others slowly becoming smaller. His eyes were a vibrant gold and his hair was a dark blue-purple color. He was wearing a trench-coat with a button up, dress shoes, and slacks. His left hand was in a pocket, the right one at his side. "My name's Neah - Neah Walker or Neah D. Campbell. Whichever is fine. I'm surprised you don't remember me." His face contorted into one of sadness, then one of misery as he looked down at his body. He muttered, "But why am I a kid?"

"Can you at least tell me how you know me?" Allen - she had given up and just decided that it was her name - sighed.

"Hmm… I could give you a straight answer, but you should wait until you regain your memories. You're a very intriguing girl. It's a shame you lost them in the first place." Neah replied. "But you should wake up now."

Despite wanting to ask more questions, Allen gave in and nodded. She gave Neah a small smile and put her hand out, saying, "It was nice to meet you, Neah."

Though a little shocked - and Allen could, strangely, feel the shock - Neah returned the gesture, shaking the girl's hand. Allen let go after a few seconds. She gave another smile, bigger this time, closing her eyes.

After what felt like an eternity, Allen reopened her eyes. Feeling much more collected this time, she sat up, albeit slowly. A few minutes after she collected herself, the door opened.

What Allen saw gave her a slight shock, because in walked a young boy, probably around ten or eleven. He had dark blue-black hair cut shaggily and a dark blue color of eyes. He cautiously checked outside the room before closing the door and facing Allen. The dark-blue haired boy's face broke out in a grin.

"I finally get to meet him!" he was speaking Japanese, which Allen understood, surprisingly. "The sleeping boy! Name's Rin Okumura, what's yours?"

"Allen, I think." Allen murmured, fidgeting with her hands.

"Allen?" Rin asked. "What kind of name is that? Especially for a girl!"

"Hey!" Allen retorted, an irk mark on her forehead. "I happen to like the name! Besides, Rin is a girl's name."

Rin's cheeks turned pink and he looked off to the side putting his hands behind his head. "So where'd ya come from?"

"I don't know actually." the white-haired girl sighed.

"Well, I'm gonna go tell Dad that you're awake now." Rin grinned, turning and running out the door of the room. Allen scratched her own head in confusion. A few minutes later, the man from the first time Allen woke up - Shiro - walked in, Rin and another young boy behind him.

"Ah, so you are awake." Shiro chuckled, walking over to Allen.

"I told you!" Rin pouted, crossing his arms.

Shiro let out a soft laugh at his son's - Allen assumed their relationship was that of father-son, due to what Rin referred to him as - demeanor while doing a look-over of Allen's wounds and redressing them. He inspected the scar on her face, expression that of deep concentration. Shiro quickly moved on to the white haired girl's other wounds. He took the bandages off of the nasty wound on Allen's leg - which was a bullet hole of sorts - to see that it half-healed already. He seemed very shocked at such a fast recovery, storing the information away for a later time.

Shiro quickly re-wrapped the wound with fresh bandages and continued with the rest. Soon, he was done and gave Allen a smile. "Most of your wounds are completely healed, if not almost. There's only a couple of bad ones, and even those are at least half-way healed. You have remarkable recovery abilities." (Allen could almost hear suspicion in his voice, but wrote it off as a trick of exhaustion.)

"Really…?" Allen murmured, getting a feeling she'd been told that before.

"Did you remember your name?" Shiro asked.

The girl nodded. "Allen. Allen Walker, at least, I think." She deliberately stayed quiet about Neah, getting a feeling that mentioning him would get them both in some sort of trouble.

"Do you remember your birthday?" the man asked, helping Allen stand from the bed.

'December 25th, ten years ago,' came a whisper.

'Neah?' Allen thought, but replied, "December 25th and I'm ten years old."

"Two days before Rin and Yukio's, huh?" Shiro grinned. "If you stay, I guess we have three birthdays to celebrate. Rin is my oldest son, though I think you've already met, haven't you? Yukio is my youngest son."

"Nice to meet you, Allen-chan," the boy from before - Yukio - bowed.

"Ah, you don't have to do that." Allen replied nervously. "Just Allen is fine."

"Okay, then nice to meet you, Allen." Yukio said, smiling slightly - though Allen could tell it was a little forced. "I hope we can get along well."

"Me too." Allen smiled. Rin then ran over.

"Come on, Allen! I wanna show you around!" the oldest boy urged.

"Ah, alright!" Allen said, letting herself be pulled. Shiro scolded Rin for forcing Allen to run, but the dark haired boy half-ignored him, saying that they would be careful and running off the the white haired girl in tow, both giggling fiercely.

Neah let out a sigh of irritation at the few words he was able to get through to his vessel. Before this stupid dimension-hop, their communication wasn't interfered with. Neah assumed it was due to all of the demons - 'Not Akuma,' was a passing thought - in this world. He was aware of another presence in the young Walker's mind and he turned around to see a purple haired, yellow eyed, fanged man with a weird outfit.

"And you are…?" Neah asked.

"Mephisto Pheles." the man said, a smirk on his face. "You know, Noah, this white haired vessel of yours had to travel through Gehenna to get here. Satan seemed intrigued by her. It's unlikely that he'll use her as a vessel, seeing as you're already here, but she'll be an important piece in this game of chess."

"How do you know of the Noah?" Neah glared upwards, his gold eyes flashing.

"I'm not the King of Time for nothing. I've been around since the beginning of the Holy War. Sure, it was a little different from the perspective of this dimension, but I still experienced it." Mephisto's smirk became maniac. "Shall we let the games begin?"

"You're on, demon. Allen will beat you." Neah ground out.

"Ah, but I'm a simple spectator, just as you are. I wish you good luck." Mephisto said, tipping his hat in a gentlemanly manner. "With this, I bid you adieu."

At that, he disappeared in a pink cloud of smoke. Neah clenched both his jaw and un-pocketed fist.

"I will get you, Mephisto, whether you're a spectator or not."

So this is an idea I've had festering in my head for a while now and I decided to put it up. I might continue it if it gets enough support. If it does, I'll be posting the next chapter sometime the week of 3-5-17(hopefully). The next chapter is basically a part 2 of the prologue, just filling you in on stuff that occurs in the first few months after Allen is found. It's still being worked on. -.- Dang procrastination, but I also have other stories if you wanna check them out! One is a regular Blue Exorcist fic, one is DGM/FMA crossover, and then I have two completed DGM stories. So if you want, go check them out!

Edit 2-12-17: I've changed Allen and Rin back to male because it flows with the story better.

Edit 3-5-17: Allen is once again female because THAT fits better with what I have planned. Also fixed some grammar and rephrased some stuff.