Nina Iseri drops out of high school and moves to Tokyo by herself. In front of the station in the suburbs of Tokyo, Nina sees Momo Kawaragi singing alone and is touched by the power of music. Nina decides to form a band with Momo, Subaru Awasu, a girl who hides her true feelings, Tomo Ebutsuka, who was abandoned by her parents, and Rupa, a lonely girl without any family...