He bullies you because he has an obsession with you, he likes to see you suffer, he wants to own you completely, you are only his, you are his rabbit. Your bullying, Karasu, pushing you into a small closet in one of the old classes and locking you from the outside, you banged many times for him to open his closet, but he wouldn't, and he giggled viciously. "You will stay in here until the end of class." He closes the door, leaving you in the room.