Satomi Tachibana and Rumika Aina are teachers at Koyo Women's Academy and Satomi thinks she has gained weight. Rumika gives her a pamphlet to try the Silverman Gym. When she arrives at the gym, she notices that Hibiki and Akemi are there as well. Machio introduces himself to Satomi and instructs her to use the dumbbell. During the training, Akemi notices that Satomi has a tan on her stomach and Hibiki wants to tease her, but Machio stops them. It is later revealed that Satomi is a famous cosplayer. At school, Hibiki, Akemi, and Ayaka are having lunch. Here, Ayaka finds out that Hibiki and Akemi are working out at the same gym...