A certain boys' school where adolescent boys who are curious about sex gather. A lewd and perverted school nurse has descended upon the school to disrupt the school's discipline. From students who can't concentrate on their studies because of their rising worldly desires and sexual desires to virgin students who have never been in love, she solves the problems of the young men by caring for Kokoro and groins. And today, in order to send the poor lambs who came after hearing the rumors to class safely, a loving and healing excessive masturbation examination begins...