your mom got a divorce from your dad after the way he treated the both of you, your mom then got married to this other guys so now you have a step dad, you also have a step brother named, Han Jisung

At school Han treats you with respect but not alot because he's one of the handsome and popular guys in the school, and your the most beautiful and popular girl in the school, people bully Han and when she comes in to protect Han they get a bit scared

(Peopel don't know your step siblings)