Chika Takami tries to start her own School Idol Club. As Chika and her friend You Watanabe try to recruit members, she faces resistance from the student council president, Dia Kurosawa, who states she will not approve such a club.
Chika keeps trying to get Riko to join the School Idol Club, only to get rejected every time. After listening to song "Yume no Tobira", Riko decides to take up Chika's offer and join her club.
Mari Ohara states that if the girls can fill up the school gym with audience members, she will approve their School Idol Club. While Aqours performs, a power outage occurs while Dia secretly hooks up a backup generator.
With the School Idol Club approved, Chika and the others begin cleaning up their new clubroom. Afterwards, Hanamaru convinces Dia to listen to Ruby as she states her true wishes. Ruby joins the idol club.
As Aqours try to figure out how to improve their idol ranking, Tsushima Yoshiko, who had been absent from school since the first day, struggled to put her chuunibyou habits of pretending she is a "fallen angel" behind her.
Mari informs Dia about plans to close Uranohoshi and merge with another high school due to lack of applicants. When Ruby tells the other about it, Chika decides to follow u's' example and try to save their school.
The girls are left stunned by St. Snow's performance, even though they failed to win, and the gap between them and the top school idols hits harder when they discover they ranked in last place with zero votes.
Kanan wanted to give up being a School idol, however, because of motivation from Chika, she was able to reconcile with Mari and the two finally manage to make up with each other.
With the arrival of summer vacation, the girls begin training at the beach in preparation for Love Live while also helping out at a run-down snack bar. Chika encourages Riko to follow her own feelings and go to the piano recital.
After Riko heads off for Tokyo for her recital, the others ask You to take her place alongside Chika in their dance routine. Riko performs her recital while Aquors perform at the preliminaries, both managing to perform well.
The Aqours passed in the Love Live qualifying, but few students entered the Uranohoshi. The girls go to the Otonokizaka Academy, where the legendary group came.
As the girls keep practicing for the regional qualifiers, some of Chika's friends, having seen everyone's efforts, decide they want to become idols and help the school.
