Chaerin is a cold hearted girl is a new student in the school. She always keeps everything to herself. Lack of friends as she never talke much in class. Zico is a playboy who goes around flirting and play with girls in the school. There is never a girl who couldnt get. Zico bet with his friends to be able to court chaerin in just 1 month. One day, another new student came in to join the class, Jay. Jay was Chaerin childhood friend and her first love.. What will happen next? Who will end up