Arisa is a former "yankee" (delinquent) who changes her ways to gain the attention of Ren, a studious boy. Her efforts finally pay off when Ren asks her out. She's supposed to be really happy now that she has a boyfriend, but for some reason she can't stop thinking about Issei, her next-door neighbor. What happens when Issei forces Arisa to be the lead vocalist for his band? Arisa has to decide: who does she really belong with?