A senior highschool student who suddenly met a girl who's just looking down in an empty music room with full of agony. A performer who totally lost its passion two times because her reason to be a performer left her. Two heartbreaks because of losing those people caused her agony,her painful battle. She hated performing,because she always lost the person behind her reason to perform. Little did she know,she'll meet a girl that will make her passion to return to perform again. The rhythm of her heartbeat returned. But she lost hers.