Kirin plays "doctor" for Matsuri, who had faked mumps in order to be with her. After making her statement on how grateful she is to be loved by many people, Shinobu tells Momoko she loves her. Feeling uneasy, Momoko leaves the apartment. She feels bored with her life and starts seeing her teacher, Hayato-sensei, and they end up having sex in a hotel room. The entire class soon gets wind of it and the girls completely ignore her. Meanwhile, Hayato-sensei collapses and is sent to a hospital. Hiding in a closet, Shinobu and Naitou hear from girls having a three-way about the teacher's illness and go see her. Hayato is no longer able to teach at the school and must leave. After parting with her lover/teacher on peaceful terms, Momoko goes outside to where Shinobu is waiting and thanks her for bringing her to the hospital.