My Assassin High School

On the surface, you seem to be just an average high school student. But the truth is that you’re one of the deadliest assassins out there! Your newest mission is to blend into the Ryuho Academy as one of its students and take out the headmaster. Doesn’t sound too difficult, but it turns out that you’re the only guy in the entire school! Still, with a bunch of cute girls interested in you, this mission seems like it’s gonna be pretty good. However, you soon learn that there’s more to this school...