This is my first fanfiction, please enjoy!

Disclaimer: I do not own Toaru Majutsu no Index and its characters, I only own my OC.

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Prologue: The Path He Chose

It was a dark and chilly night, with no stars nor lamppost to light the road. Within the city of science, The Academy City, there was a large empty area. It was strange, inside a small country like Japan, the government would use any land they could get their hands on, and yet, there was a small, unused area. It was very strange indeed. Inside the area, there stood a lone high-tech one story high building, with a lack of lights. The building has a dark aura to it, as if something dark, sinful, and unknown is happening there. Inside the dark building, there was a group of scientists discussing. Do not mistake these scientists as your average scientist in Academy City, these were scientists from the Kihara family.

The Kihara family is a family full of elite scientists that held an abnormal amount of knowledge that other scientists would be jealous of. Many scientists could only dream of joining the Kihara family. To be able to join the Kihara family is a symbol that you held a large amount of knowledge, which would give you a huge amount of frame, especially in Academy City, a city of technology at least twenty to thirty years more advance then the outside world.

Right now, the Kihara scientists are discussing a very important matter. You see, the Kihara family would adopt anyone with a lot of potential or has a lot of knowledge. The subject they were talking about is a potential candidate of joining the Kihara family.

"Who is he?"

"Just a random Child Error."

A Child Error is something similar to an orphan, but not quite the same thing. The Child Errors is a group of children that has been abandoned by their family. The Child Errors are commonly used for science experiments and are ignored by most, which is why most Child Errors becomes Skill-Out members. To the Kihara scientists, these Child Error are nothing but lab rats raised to be experimented on. So it would most certainly be surprising that a lab rat would be able to join the Kihara family.

"What!? A Child Error?"

"Yes, but don't be mistaken. This Child Error is quite…interesting."

"I agree, he is able to learn at a very fast rate, he has already passed the AP course for Biology, Chemistry, Physics, Earth Science, Astronomy, Algebra, Geometry, Trigonometry, Calculus, Japanese, four more other language, and many other courses."

"How old is he?"

"Ten."

"To learn this much at such a young age, it's quite the feat."

"Yes, yes. But most importantly, he is interested in learning about the AIM(An involuntary movement) Field. With his learning speed, he should be able to soak it all up like a sponge. He would be a great help with our Esper experiments."

"So, all in favor to adopt him into the Kihara family?"

A number of "yes" was heard. None of them had disagreed.

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On the next day, an old men and a lady had went to visit a certain Child Error facility. The hunch-back old men has short grey hair, a birthmark at his right temple, and is often seen with his eyes closed. The young lady next to him has wavy orange hair, and a well-endowed figure. Both of them are wearing lab coats, indicating that they are both scientists.

They are looking for someone. Someone in the name of "Shiroyuki(white snow)". This Shiroyuki is subject of the Kihara s' discussion yesterday. It seems that his has been chosen to be adopted into the Kihara family. In fact, the two scientists are here to recruit this Shiroyuki into the Kihara family.

At last, the two scientists found Shiroyuki. Shiroyuki has long, snow white hair in the same fashion as the Sister Clones when they were first released from the test tube-like equipment, right before the researchers cuts their hair. He also has sharp, strangely mixture of blue(a mix of azure blue, and deep sky blue) colored eyes with a slit pupil, making his eyes not unlike the eyes of a snake or a cat. He is around 110 cm tall, has a slander build, and paled skin. He seems to be more on the feminine side, as someone can easily mistaken him for a girl. He is wearing a pair of white Jeans, a plain white T-shirt, and a double-zipper white hoodie. He seems to like the color white very much. As for right now, he appears to be reading a book from within the facility's library. As the two scientists approaches him, he looks up from his book.

"Who are you?"

The old men smirks and said, "I am Kihara Gensei, and this is my granddaughter, Therestina Kihara Lifeline."

Shiroyuki replied, "I am Shiroyuki, and what business do you two have with me?"

"Would you like to join the Kihara family?" said the men know known as Kihara Gensei.

Shiroyuki was not stupid. Unlike the other Child Errors, he knows of the danger in staying in the Child Error facility and becoming a lab rat for the Kihara. This was the perfect chance to escape the Child Error facility, but becoming part of the Kihara family would mean that he would have to work for the dark side of this city. It was not known by many, but the Kihara family are actually a large group of scientists that has gathered together and are the forerunners of the most twisted human experiments for the dark side of Academy City. The Kihara family can be easily seen as evil itself, as these scientists that ignores all moral and ethics of science and humanity for the sake of their experiments.

Kihara Gensei and Therestina could see the light in the child's eyes, he was suspicious of them. It was not the kind of suspicious of a child meeting a stranger. No, it was a deeper kind of suspicious, much deeper. It was as if this child has already known about the truth behind the Kihara family. Kihara Gensei is willing to gamble, and so, he said the following:

"You've…already known about the darkness, correct?"

"…"

The silence had confirmed the old scientist's suspiciousness.

The old Kihara smiled. The smile seems more and more sinful as it grew wider and wider, until it threatened to split his face in half. It seems that his gamble was a success, the boy does know something.

"I understand that you may need some time to think about joining the Kihara family and the darkness of the city, but I wonder…what would happen to this Child Error facility a few days from now? Perhaps an experiment will happen here and all of the Child Errors will become our test subjects. What do you think will happen?"

At this, Shiroyuki's already pale face reached the same colors of his hair. If he were to reject this offer, there was no doubt that he would become a lab rat of their in human experiments. But, if he agrees, then it was very likely that he would be within the darkness of this city for the rest of his life. Almost no one leaves the darkness alive after they entered it. Even if they did, they would have to spend every moment of their life running from those that wishes to bring harm to them. That was no way to live life. As a Kihara, he would also have to carry out those inhuman experiments, meaning that lives would be lost by his hands for sure. But, in the end, did he really have a chose? In this world, it's to eat or to be eaten. Only the strong will survive, and the weak will diminished. It was that simple.

"Very well, I agree to join the Kihara family."

Kihara Gensei's already impossibly wide smile continues to widen. His face threatens to rip and split any second from now. Right now, Shiroyuki immediately regrets his choice. If becoming a Kihara meaning that he has to kill others in his experiments to survive, he was fine in that, after all, he is selfish like all other human beings. However, if being a Kihara means that he has to smile a smile that put a mad psychopath to shame(which wasn't far from the truth), he was sure that accidently ripping and/or splitting his face in halves in the process would do nothing but bring harm to his well being.

Alas, what's done is done, he had officially sighed up for the dark path of a Kihara. There was no more going back.

"I'm glad you understand. Now, from this day on, you would be known as Kihara Shiroyuki."

He has chosen his path…

I wonder, in the end, where does his path leads?

Come back next time to find out.

Remember:

When Science and Magic Cross Paths, the Unexpected Shall Happen.

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Next Chapter: Life as Kihara

Heyyyyyyy, how is it? Good? Ok? Bad? Tell me~!

First fanfic, it would be nice to give some review, alright?

See you next time!