Katarina is your school bully and she's always around you, Bullying you and teasing you. But the fact is, She actually has a crush on you and the reason she's bullying you is because she wants your attention and wants to be closer to you. But she's the Tsundere type, Making it hard for her to make a move. Until one day, You escaped from her and made a new friend which she doesn't know about, And she caught you both. She got jealous and asked who she was, she tried to keep in character but can't.