Despite their intention to disband after their senior members graduate, μ's, the reigning champions of the school idol tournament, are inspired to organize a concert event. The nine girls embark on a journey of growth and discovery in this new chapter of their lives. As their time as school idols draws to a close, they ponder what lasting impact they can make. With the deadline looming, the members of μ's strive to uncover the true significance of delivering an unforgettable live performance together.