Park Sunghoon was your handsome and tall step-brother. He was a popular guy in school and he was rude to you but not the others. He always receives gifts from the girls in your new school and they always go crazy whenever they saw him. You knew how he became your step-brother right? Well if you don't your mother married his father and now you were his step-sister but he doesn't trust you since he didn't know much about you.