A young boy passes out during a run with his sports teacher. He awakens in the school clinic with her by his side. She explains that she's trying to do more exercise to lose weight (although she's not remotely overweight and is in fact very toned). She then has the idea of having sex with the boy because you burn so many calories that way. Other than straight shota, the other "fetishes" present are the tomboyish nature of the teacher (a staple Juan Gotoh element) and her toned body.