Summary: The alien-teacher was the bait. He will eventually come, and she will finally have her revenge. Until then, she must be patient. However, what initially started out as a simple plan had grown into something enormously complicated. Self-Insert OC-centric GEN

Disclaimer: Assassination Classroom belongs to Matsui Yuusei.

Warning: Mild Violence, No Pairing (Tentative)

Genre: GEN, Action, Friendship

A/N: The story revolves around Saki and her quest for revenge. It mostly centers on her budding (?) friendship with her classmates. There will be little or no romance. If there is, it will not be largely focused. But, I may tease you sometimes, giving a fluff here and there. \(^o^)/ I'm not sure who'll the male partner be though. Karma or Nagisa? …Asano? It's so hard to choose!

Prologue

"Oh, I didn't know there would be a child."

A 7 year-old girl in a white one-piece was crouched in the corner of her bedroom, her arms wrapped around her knees. Tresses of her long, wavy hair cascaded down and framed her petite face. She blinked a few times, blinded by the sudden light. When her eyes became adjusted to the brightness, she stared blankly at the slender man leaning on the doorway. A pleasant smile was present on his youthful face.

"The informant either lied to me or he himself mustn't have known," said the man, his voice velvety rich and smooth. His face adopted a thoughtful look. "Depending on which, I'll kill him. I don't take kindly to being lied to, although failing to retrieve accurate information is also a grave crime."

He turned to the girl, smiling. It wasn't warm or dark; instead, it was hollow. "No matter, you'll be dead in the end." He pulled out a revolver and slowly raised it.

The girl's gaze fell upon his shoes (his blood-soaked shoes). He killed them. He killed the monsters. She tilted her head. "Are you a demon, mister?"

Something much worse, little girl.

But then the man paused, his expression turning mildly curious. He took in her unfrighten gaze and her equally unfrighten voice. Slightly puzzled, he lowered the gun. How curious… All of the adults and children he had met would ooze with fear and desperation at the sight of a weapon and the vision of their own death. This child, on the other hand, had a different reaction.

"What do you do if I say yes?" he inquired, intending to play along for a bit. He started towards her, his strides languid and graceful. He left a trail of bloody shoeprints across the carpet.

She watched him draw closer and stand before her all the while emit a small amount of killing intent he'd normally kept suppressed. The air around him thickened with pressure. There was no change in her expression. He didn't detect any emotion on her face, something that was impossible for him as God of Death. He was intrigued.

"If I sold my soul to you, will you fulfill my wish?"

His smile slowly turned from hollow to amused.

"That is a heavy exchange," he commented idly.

He hid the gun away and got down on one knee, wanting to see her up close. He noticed a nasty bruise on her collarbone area and several on her arms. There were probably more but hidden.

She's been abused, he thought. Memories of his life during childhood suddenly raced through his mind. He didn't notice his smile slipping.

The child didn't appear to notice his keen, analyzing gaze on her body. She pushed forwards, her hands touching the floor for balance. Her nose brushed against his, drawing his attention; her eyes (Hmm? They're green) momentarily flashed something fierce and pierced into his. Abruptly, he was hypnotized.

"I want to be free."

Her words had some kind of strange power over him. Something in his belly pinch and lurch. It was an inexperience he'd never felt in his life. It didn't exactly displeased him though.

Strange… she somehow reminds me of… me. Only a little.

An idea became to cultivate in his mind, growing wildly and spreading like a virus. It was something he'd never thought of or he would do in any circumstances but strangely he was thinking of it now.

A whim. He'd taken whims before, he thought absentmindedly. But not something of this scale, the voice in the back of his head whispered.

He pulled back and got back on his feet. A laugh escaped him. The man was amused with himself. Funny how he had initially thought this day would be like any other, only to come to this.

"What is your name?"

.

.

.

There was a pause. The child traced her fingers over her stomach, as if writing something, as if considering.

"…Saki."

"I see." He knew that wasn't her real name but made no attempts to call her out. After all, he had forsaken his long ago.

The man smiled kindly, holding out a hand. He knew children needed to be reassured so he plastered on one of his fake smiles. But, something told him she already saw through it.

Saki gently placed her hand (a lot smaller compared to his) onto his palm, and he grasped it, pulling her up. A look of slight wonder passed over her face. It was the first physical contact that didn't leave her scarred or bruised. His hand was cool. And she could not feel warmth of his touch but at least it was something.

Still looking at their joined hands, she murmured, "And yours?"

His eyes glinted with a dark sense of humor. "I might not be a demon but I'm known as the God of Death, the world's greatest hitman. But you may refer to me as your teacher. Come, child. Let's get out of here. My business is dealt with. There is so much to see. But first you must learn. I have lots to teach you.

Your freedom is just starting."

Now... time to have a little talk with that informant.

End Notes – So… Is it to your liking? If so, I'm glad. If not, oh… well I can't say I won't be disappointed. But I will try hard to make this story more likeable.

For the people who haven't reach Ch. 134 you may not know who previously held the title God of Death. I don't want to spoil it to you so it's your choice to google it up or not. But if you're going to continue reading this story, eventually you'll find out sooner or later.