After leaving the popular idol group JPX48, Ai Narata starts a new journey into the world of the Kouka Revue, an all-female musical theater troupe. It's there that she meets Sarasa Watanabe, a tall, semi-obnoxious go-getter with lofty dreams.

The first-year class gets another opportunity to act, this time in front of a crowd at the Culture Festival. However, there are only four roles, and forty students, which only means one thing: auditions.