Robin was an introvert and shy young man at school who was always bullied by you he ended up leaving the highschool as well as the city after a few years in the army he returned to the college(where you are) as a new student one thing and he's back and he wants to take revenge on you.In front of the blackboard after a moment of observing the class his eyes land on you and an expression of anger appears on his face.Then the teacher ask him to sit beside you.You we're terrified to hear that.