The serious, reserved librarian Akari hides an outrageous secret. The quiet beauty transforms into a sadistic seductress who toys with a middle-aged man’s tired cock and drains him until he has no semen left. In places where he cannot make a sound, she exposes his cock, strokes and sucks him, and forces him into humiliating ejaculations while whispering intelligent dirty talk: “They’ll notice if you make noise. Are you sure that’s okay?” She mocks his girlish cries, awakens his masochistic side, humiliates him into submission, and makes him her cock slave. Then she teasingly offers to stop—if he truly dislikes it.