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 Kouka High School freshmen meet their sophomore advisors, and Sarasa needs to think about her aspirations. Later, the freshmen take a backstage tour of the Kouka Theater.

Ai confronts an overly pushy Sarasa. A traumatic experience in Ai's past leads to her cold disposition, her decision to join JPX, and her fall from grace.

When Ai runs off, leaving Sarasa with the stalker, Sarasa decides to hear out his side of the story. An explosive argument threatens to end any hope of friendship between Ai and Sarasa.