Wataru is asked by Juri, the mother of his friend who runs an esthetic salon, to be a trial customer. Nervous yet excited for his first ever esthetic experience, he begins receiving treatment from her. Amid her warm and erotic atmosphere, Wataru gradually grows aroused. Perhaps the stimulation is too intense for a virgin like him—his penis involuntarily erects. Noticing his inexperience, Juri teasingly begins deliberately stimulating his sensitive areas, intensifying his frustration. Exposed to a mature eroticism that young women cannot offer, Wataru becomes increasingly addicted to the pleasure of the massage, unable to resist. Drawn deeper by Juri's bold and seductive behavior, Wataru finds himself helplessly captivated by her.