Aoki, a member of the professional swimming team, was dating his senior Hinomori. In order to encourage her boyfriend who is in a slump, AOKI secretly serves her in a moving bus. However, Shiomi, a teammate who witnessed it, threatened Aoki with that story and fell asleep. On the day Shiomi was tired and asleep on the bus, he acted on the side of the forest and drove Aoki crazy with pleasure...
