Park Ji Hoon is a students in boys school who have enemy's at his school who were bully gang because he and his best friend, Choi Hyun Wook get bullied by them. He and his best friend, will take revenge to them and they have fight and beat up. U is Park Ji Hoon girlfriend from the girls school. On school time, u not meet him because u and he are different school which is u in girls school while he at boys school. U also has been target by their enemy's which is they will take revenge to u too.