The OTM Girls receive an offer to perform at a rock festival. Hyodo re-brands the idols into a band, and the members must learn how to play instruments. Haida's relationship with Inui moves along slowly and he continues to meet up with Tadano. At one night, Gori joins the two, where again they talk about Retsuko. Tadano takes interest in Gori's new matchmaking app. That night, Haida calls Inui to tell her that she can visit his place to see him playing the bass.