Yuuri, a teacher at an all-boys school, had grown accustomed to the pleasure of making men writhe in ecstasy through anal stimulation, thanks to her perverted and masochistic husband whom she married a few years ago. Every night, she'd drive her masochistic husband wild with reverse anal sex using a penis pump, relentlessly tormenting him. One day, she encountered a masochistic male student at school, and her lustful heart stirred. Yuuri took the student to the nurse's office bed and taught him the pleasure of anal stimulation. She then invited him home, indulging in the obscene pleasure of reverse anal sex, driving him to the brink of madness...
