Hinata is an honor student at a school in Tokyo, and a serious student with a strong sense of justice. He is the captain of the brass band and plans to go on to a famous music university after graduation on recommendation. One day, his classmate Meguro is being corporal punished in the hallway, holding a bucket. When Hinata sees this, he protests vehemently to the punishing teacher Kato, but he threatens to revoke his recommendation and he is forced to participate in a spring break supplementary training camp with Meguro. Little does he know that it is a creampie sex training camp... #YoroP