Nanao, a married woman who applied due to a sexless marriage, is given a single condom and spends the night at a college student's house. They quickly finish having sex using the condom, but the man is not satisfied with just one ejaculation, and she allows him to have raw sex with her. The two agree to act as if the second time never happened, but unable to forget the pleasure of raw sex, they seek each other out again as her time to return home approaches.