Both Chika and Hiro now know Satowa's secret. Now, Hiro plans to stir more trouble within the club with this new information. How will Hiro's meddling affect the club? Will their bonds prevail?

On Tokise's school festival day, Takezo gets a surprise visit from the previous koto club president. He tells her that there are now seven members in the club and suggests that she come listen to their performance at the gym.