A/N:Good day ladies and gentlemen. I present to you a new fanfiction I have. The idea for this fic came into being after I read several OC fanfictions about people being put into the world of Ao no Exorcist as though it was an anime and that they already knew about it. So I thought to myself, 'well why not have it as another dimension?', and tah-dah, here we are. I am unsure as to whether this fic will contain romance as the main character isn't really a romantic sort of person. However, I did want to experiment with Mephisto meeting someone with a similar level of intelligence because let's face it, he's far too underrated and he needs his personality explored a bit more. I would like constructive criticism on this story if people would be willing to give it, and I appreciate you who happens to be reading this right now.

Disclaimers and such:I do not own Ao No Exorcist, the only things I do own are obvious things like the main character and the main storyline. This is rated mature for gore and possible mature content. This entire story is some what AU.

Inspiration Music: "Mellifluous" by Oshi


. : Prologue : .

" Humans are far more capable that one might think.

Some are just far more capable than others. "


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Her job was not for those with weak stomachs; and it certainly wasn't for those with morals. The job was a cruel one that entitled one to push their emotions aside and put the purpose of their work above all else. In some ways, they were not human and neither were their 'projects'. Well… Not after they were done with them.

Kriemhilde, well-known to her peers as Dr Schwarzschild, was not one to mess around in her field of work — After all, they were messing with the very fabric of space and time. Such work was not suitable for normal humans to trifle with, which is why they were specialists in their field of work.

The Hisakawa Facility — named after the very man who discovered that space-time could be manipulated through the use of man-made creations — was a laboratory carved underground a mountain range in the North of Japan. None of the scientists who worked there actually knew where the metal fortress of sorts was exactly. Once you entered the structure, you agreed to leave the world behind. You did not return from the abyssal halls of the laboratory for the rest of your life.

Dr Schwarzschild, head scientist and engineer of the aptly named "Time Gate", stalked through the seemingly never ending halls of the man-made fortress. The trail of documents left behind her in her haste was picked up by the fumbling hands of one of the newbies as he crudely stacked it in his free arm. The woman murmured under her breath, her emerald eyes only flicking upwards when she turned a corner. Gradually, the unorthodox pair made their way through the halls to enter a mechanical elevator where the elder of the two slammed her slender fingers onto the keypad in the wall. A whirring sound was heard and the elevators lights flicked once before their vision was blanketed with darkness.

Something akin to unease tickled into the pit of Kriemhilde however she ignored it in favour of stabbing her index finger on the largest button of the keypad. Slowly, they began to descend into the lower reaches of the laboratory to which only the most loyal of scientists were allowed access too.

The scrawny man who had only just passed the last stage of boyhood shook a little and yet despite his timid appearance there was an undeniable sharpness to his oceanic gaze that was the true mark of a scientist. His name was of little importance but for the sake of manners she recalled that he was named Ito and rarely used it, often referring to him as 'boy'. Now his loyalty had been proved the brunette supposed he was worthy of her calling him his name, although it wasn't without mild distaste.

As her eyes flickered to him he gave her a slight inclination of his head, indicating that he acknowledged her as his superior and the woman arched an eyebrow. A blush bloomed across his cheeks and she swallowed the urge to recoil. 'Silly boy.', she thought. Wasting his affections on female who was clearly out of his league would only lead to his downfall. It was only a matter of time until the facility broke him in though…

Her attention was brought to the fact that they had reached the very bottom level of the laboratory and strode out of the lift, her companion scurrying along behind her in an attempt to catch up.


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"I don't really think that you understand the situation Miss Schwarzschild—"

"I understand perfectly fine." The said person cut him off.

"U-um, as I was saying… The scientists in this area could not have possibly predicted that experiment A3-56 would have the strength to break out of its containment field—"

Kriemhilde's green orbs hardened and she roared back at him, " 'Not possibly predicted'!? This is a man-made, dimension jumping creature with the ability to teleport itself across large distances! Pumping it full of sedatives it going to do nothing considering that these so-called scientists decided to give this abomination genes that enable it to adapt and become immune to all kinds of chemicals."

She was furious. No, scratch that, she was utterly enraged to the point she was actually considering killing this man.

"I- I- I apologise Miss Schwarzschild, I won't let it happen again—"

A shrill scream echoed from behind them and the pair turn around onto to witness one of the most brilliant minds of their whole project become nothing but smear across the wall. Some of the blood even splattered across the brunette's glasses, but she wasn't worried about that, oh no. It was the fact that their creation, their abomination, stood only 100 or so metres away. It's humanoid figure distorted occasionally, the black pigment of its 'skin' blurring away into nothing occasionally only to reappear as its body reformed.

A3-59 was no ordinary experiment. It was conscious. It knew what it was doing. It knew that it was far more powerful than any of the other life forms surrounding it. And while it had no eyes, it could definitely sense them.

Without warning the man standing to the side of her let out the most incredibly high pitched scream and proceeded to flee like the hounds of hell were on his tail. Unfortunately for him, this being was something much worse than a measly hound of hell and it flickered into existence before the man before he promptly exploded.

Kriemhilde arched an eyebrow in vague amusement. Good thing A3-59 killed him, her fingers were literally twitching across a scalpel attached to the bag at her waist.

The creature tilted it's oversized head at her, and what she supposed as a tongue flicked out to hang by its pectorals. Yes, she could feel dread pooling in the pit of her stomach as it began to make its way towards her, but she did not move. Her pride prevented her from doing so and the scientist merely plucked her glasses off her nose and rubbed them clean on her lab coat.

She was more than aware about what might happen, but for some reason unknown to her A3-59 flickered away appearing in the corridor to the west of her and it continued to travel away from her.

This was the lowest floor, so where could it possibly be going...? It was too weak at the moment to teleport away fully since it was still flushing the toxins out of its body so why would it—

The time gate.

The green-eyed woman almost screamed in a mix of frustration and horror. How dare this thing think it was able to use her machine? The sheer audacity of the creation was enough to make a snarl morph her beautiful features into something terrifying.

Dr Schwarzschild ran. And she rarely ever ran.

Desperation clawed at her insides, churning her stomach and intestines so much that she wanted to vomit. If A3-59 used the time gate, the collision of two dimension manipulating creations both trying to warp the fabric of space-time at the same time... This dimension would not only end up destroyed but the 15 years she put into this project would be obliterated. She would end up with nothing and none of her greatest achievements to show for it as both would be warped to another dimension or possibly destroyed.

Long hair fanning out behind her, her heels clacked loudly as she charged towards the 6th Dimension Sector, fingers flying across keyboards and keypads to get to the room where she knew it was going.

Upon reaching the final door and shimmying through it as it slowly opened, she witnessed the creature fingering the dashboard that stood next to the large circular gate and she screeched.

"Nein, STOP!"

It ignored her in favour of continuing its task and she stumbled forwards as the gate began to charge up, the outer ring flaring to life.

It was in these final moments that Kriemhilde realised she didn't care if she died. She'd spent far too long formulating, experimenting and calculating to let this prick slip out of her grasp, and with her masterpiece no less.

Desperately, the albino flung herself at A3-59 as it appeared in the center of the gate, her vision exploding into white.


Quick OC Overview:Kriemhilde Schwarzschild, female, German, aged 42. A scientist who specialises in human experimentation, engineering and quantum astrophysics. She has straight brown hair that is usually tied up in a pony tail that falls to mid back, albino due to never getting any sunlight and has angularly-shaped green eyes. Severely short-slighted. Has a slight god-complex and quite the impressive ego.

A/N:Chapters will be posted 1-3 times per week.

~Merely Perspective