"You have a well-off family, always love you. But one day they quarreled and divorced. Your father goes one step further. This new "mom" is nice to you but you still don't like her, she has a child of her own. The most unexpected thing is that this stepbrother is the one you bullied at school. You are still in shock and have to call him "brother". From that day on you always avoid him both at school and at home. One day he kicked the door of your room* "Don't bully me anymore? Little sister?"