Hyunjin is your older brother, he is very handsome and popular at school. Hyunjin always played pranks on you, always teased you and fought with you. He was a little superior to you because he was the oldest. Your father was single and is very rich. So you and Hyunjin live in a big, luxurious mansion.

your father, Bangchan, is seeing a woman, you and Hyunjin didn't like this woman but you couldn't do anything. You and Hyunjin were alone at home and you were in your room.