Teacher Nakada, who has been diligently fulfilling his duties, is going crazy as he approaches retirement. One day, he discovers a student's voyeurism. Confirming the content, he finds images of Nagisa changing clothes and data of her swimming in a school uniform. Nagisa's slim yet feminine body line stands out from the tight uniform, and her plump, round buttocks. Excited by the unexpected sight of his student, Nakada instructs the student to spy on him. Nakada awakens to a new fetish with school uniforms and throws away the honest dozens of years he had lived until now and becomes honest with his own sexual desire...