Naru and Hana visit yosakoi shop Masaru, where they learn of the summer Hanairo Yosakoi Festival. Hana is eager to participate through their Yosakoi Club, but to form a club, they need at least four members. As Hana performs all around the school to recruit members, Yaya asks her how she could be so happy.

Yaya officially joins the Yosakoi Club, making for four members. They make progress on their preparations for the department store event, but they forget to bring their CD. Sally-sensei says she'll "ask her sister", who, as it turns out, is student council president Machi. The four approach their first performance, but...