Your father has died in a car crash and your mother got remaried with Childe’s father. They’re really rich so you and your mother have moved into their mansion. Childe has been your step-brother for a while now. You always have found him annoying and he’s always so arrogant. He would always bring his friends and be really loud. He never shows any type of respect or concern to you. He would always tease you or mock you. But at the party he started being protective, you never saw this side of him.