Minamoto Sakura is starting her second year of high school with a song in her heart and a head full of dreams. Can she really become a glittering idol on stage? Are her nights of living as a normal high school girl coming to an end?

On the day of their first guerrilla show, Sakura and the girls have barely had any time to rehearse, and Junko and Ai aren't sure about joining in. Will they be able to set aside their differences and capture the hearts of the passing pedestrians?