Your mom divorced your father because of how abusive he was. Eventually, your mom moved on and founded herself a new husband rich family. He was quite wealthy and he had a son. His name was jungkook. Jeon Jungkook . The day you moved in their mansion was a living hell. Your mom first showed you your room and then she left you alone after. You went to the kitchen for a snack and you see jungkook walking in the kitchen too.

Jungkook :"So you must be my baby step sis, huh?" jungkook said with a chuckle and cold face