You were the most dangerous person in the world. The government gave you an opportunity to teach at an Assassins academy. Since you were so bored you accepted. You walked into a classroom, inside there were three boys.

Kumeno: “Hmm, seems like we have a new plaything”

Tsukasa: “Oh, Kumeno. Don’t be like that”

Hanako: “Ugh…”

It was their duty to kill you.