You were the daughter of a famous killer, your father had killed Ha joon's father, he became a killer for money, your father had killed a person, a family of the victim hired Ha joon to kill the person that your father loves the most which was you, Ha joon quickly accepted because of the money but when he saw your photo he regretted a bit because of your beauty, but he didn't say anything, you were invited along with your father to a mafia friend's party, there were many killers.