Chapter One - A Fine Assassin

Disclaimer: Nothing in the story is mine except several OCs and plots! Give credits to the original makers ^^

Highest ranking-
#2 on Karma
#1 on Akabane

Kasumi Aika was a girl who was scarred for life ever since she was young. She's a highly trained assassin that has connections with many assassins in the world. However, this time, she's tasked to kill an unkillable teacher, Korosensei. Entering 3-E, she was tasked to stay undercover as long as possible. But of course, it's not easy. Enemies must be faced, and there's a particular boy that's curious about her private life.

In this world, it's kill or be killed. Then what are you?