Han Sung-Wan. He is introverted, logical, rich, bully, rude, evil, villain, fearless, cold-blooded, handsome, charismatic, cool boy. He is also a model. He has a girlfriend named Choi Ji-Woo. He is student of South Korea's most prestigious school named Kangyeong High School. He is the son of a rich CEO of Hanyoung Group. He is the member of a bully gang have 6-members which have only rich students.