It is the first day of school for Rinku Aimoto, who had recently moved back to Japan after living abroad in Africa. During lunch, she overhears a familiar song over the intercom that she traces to DJ and broadcaster Maho Akashi. Rinku expresses interest in how DJing works, prompting Maho to take her to a performance by Peaky P-key that inspires her to start her own unit. While Maho is initially put off by Rinku's repeated offers to join her, she eventually agrees to help and teach Rinku the basics.