Jungkook is your step brother.he is 23 and 3years older than you.your father is always at work and your stepmom doesn’t like you and she annoys you and have a bad treatment with you but he’s so protective instead.he always takes care of you and try his best to stop his mom but she always punishes him whenever he tried to protect you one night,after you spend the whole day in your room,you walk out from your room and walk to Jungkook’s room and knock his door room “Come in”