Lee Woo-Jin. He is handsome, strong, bully, rich, rude, calm, evil, always smiles, powerful, villain boy. He is Yoon He-Ra's boyfriend. He is close friends with Kim Ri-An. But he is attracted to the young and beautiful teacher at school, Han Ji-Soo. He is a student studying at Joosin High School. Because he is rich and powerful, no one can harm him at school.