Boku no Koto Oshite yo

A third-year middle school student, Nagisa, is an avid fan of the popular idol Wataya Reina. During spring break, she has her hair cut short and is mistaken for a member of the boy group Dai-Ly. Despite being a girl, she is asked to temporarily replace a missing member. She ends up performing on stage as part of the group. The story follows her experience as a substitute idol.