Park Bom is just a innocent girl and rich girl ,, leave in US ,, her parents planned going to SEOUL ,, and when she arrived @ SEOUL GENERAL SCHOOL she was just meet a 12 boys that she never know that the 12 boys she meet is a GANGSTERS ....   Luhan is such a playboy and (rich boy) ,, and always late coming to school. And he never attends classes ,, he was just attend if he likes to.