Kanata, a member of the Takanozaki cheerleading team, is unable to perform after an accident during a competition. One morning, she encounters a girl named Suzuha, who is leaping across rooftops and walls.

Kanata, who decided to collaborate with Anna's video, discusses the project details with Onoka, Shion, and Emina, who had also joined. While brainstorming, Anna learns that there are various types of cheerleading...

Kanata and the others decide to film a support video for Anna and Stout Records. They dedicate themselves to cheerleading practice in preparation for the carnival, scheduled on the store's closing day.

Summer vacation. The PoMPoMs gather at Emina's house for a video project meeting. Before the meeting, while everyone is relaxing, Suzuha suddenly starts checking the results of her lottery tickets...

After the baseball support was broadcast on the news, the PoMPoMs received a flood of requests for support. The PoMPoMs sincerely tackle each request one by one, steadily making progress. However, overwhelmed by the sheer number of requests, everyone begins to feel exhausted.

The PoMPoMs are going through a crisis. Megumi confides in Shion and Nodoka and then has the opportunity to have a conversation with Kanata.

The PoMPoMs spend the rest of the summer fulfilling support requests. Kanata is feeling better and is slowly trying to get back into cheerleading.

Mari has disappeared, and Kanata and the others go to look for her. After discovering her problem, they decide to cheer her on.