The school nurse 'Rui' is a popular beautiful teacher among the students. However, in private, she has been trained by her masochistic husband to be an S-type woman, licking his anus every night to the point of ●. One day, a male student at school who had become interested in anal sex came to her for lewd advice, and she gently guided him, ensnaring him. The completely infatuated student was invited to her home for an unspeakable extracurricular lesson...
