第 17 集: Akira 遭勒索同時加入網球社與拳擊社，面臨行程衝突與 Kokuchi 附身危機。

17

Aya and Kengo each requests Akira’s help with the tennis and boxing club. Akira has no interest and ignores their invitation, but is threatened with an embarrassing secret from his past and reluctantly accepts. Akira is made to do club activities from his usual going home routine. However, the tennis and boxing match are on the same day. Both the Boxing and tennis team captains then struggle for Akira. Ruru arrives with Kokuchi and possesses the opposing sides. Akira, feeling like a pawn, fights all of the Kokuchi single-handedly. At the end, Akira completes all of the challenges issued. (Source: Wikipedia)