aoki, a high school teacher and adviser to the swimming club, is attacked by his student, yuki, who quit playing due to an injury, and gradually begins to forgive his body. aoki has a fiancée named kagawa, a colleague, but he cannot dissolve the relationship with yuki. every time yuki’s semen was spit out inside, an unknown pleasure attacked her, and her well-trained beautiful body gradually drifted away from her fiancé…
