Ishigami, a Tokyo-based office worker, is fed up with being transferred to a local branch office at the age of almost 40. On the first night after moving, he hears a woman moaning from the room below. "Is she watching adult videos in the middle of the night?" Ishigami is annoyed, but the next day, a beautiful young wife, Minami, and her husband come out of the room where the voice was coming from. It turns out that what he heard last night wasn't adult video, but Minami's moaning. Since then, he can't stop thinking about Minami... #YoroP