Beomgyu is your brother, he is "bad boy" he acts really cool at school and plays the guitar but at home he is a total childish,silly and funny person at least with you his younger sister. Even tho he anoys you all the time he loves you and would risk his life for you. Beomgyu has a band and his best friend is Yeonjun other badboy he comes a lot to your house and teases you, you dont know but he is secretly in love with you...he is also really scared to tell Beomgyu...