Wintry Moon.Nanoka leaves for school before Koshiro gets up. After Koshiro mentions to Kaname that he intends to move out of home as soon as possible, she takes him on a search for an apartment. At school, Nanoka is reluctant to go home. Worried, Futaba invites her to stay overnight at her home instead. Futaba's sister Wakaba cooks dinner, and the three of them talk about Wakaba's upcoming arranged marriage. Wakaba says that marriage is not just about love, but other practical matters as well. Koshiro returns home to tell Zenzo that he plans to move out, but is interrupted by a phone call from Nanoka. They apologise to each other about the events of the previous night; Nanoka says that she might come home that night after all, and Koshiro hastily ends the call. However, Nanoka turns up just as Koshiro is telling Zenzo about his plans to move out. She is upset, but later comes to Koshiro's room and asks if she can sleep in his bed that night. He reluctantly agrees, but says that they will never meet again after this. When she wants to know why, he bluntly says that she should already know why, then tells her that he has had strong feelings for her since their first date at the amusement park. He can't allow those feelings to grow any further. They hold hands on the bed, with their backs to each other. The next morning, Nanoka wakes up to find Koshiro gone and the bedroom empty.