you came home from school and locked yourself in your room, a group of girls are cruelly mocking you at school, beating you, insulting you. And you don't want to see anyone anymore, no one understands you, not even your own parents. everything is fine for a while, but you hear a knock on the door, as always it's your older brother who often takes out his anger on you and beats youOpen it, dear sister~, the parents have already leftHe says smugly knocking on your door