Saeki refuses to break up. The next day, Kasuga is absent. Saeki asks Nakamura what her relationship with Kasuga is. She says she's contracted to reveal his deviance. Saeki argues he's not a deviant. She goes to Kasuga's house and make a case for him through the window. His mom finds his stained clothes and he runs away. Saeki sees his mom looking for him.

Kasuga enters Nakamura's room. He finds her diary and starts reading it. He recalls what had happened. Nakamura comes back, seizes the diary and runs away. He follows her and catches up to her. This time, he asks her to make a contract with him: they'll do what they can in order to leave for good someday.