In order to get revenge for Shuya, Aki decides to have a basketball match against Hayase-senpai, a former member of the basketball club. Nao watches the brave match with Ritsuko. On the other end of the video call on her smartphone, who is providing commentary, are Sunao and Shuya—

Former student council member Suzumi Mori and former vice president Shun Mochizuki appear in the clubroom and inform Nao and her friends that the literature club is in danger of being disbanded. As they work on cultural festival activities to prevent the club from being disbanded, flyers hinting at the existence of doppelgangers are scattered around the school.