Inside the fitting rooms of a clothing store in Tokyo, a lesbian saleswoman selects married female customers she finds attractive and draws them into sex with another woman. Unlike a male clerk, she can casually touch women in their underwear without immediately raising suspicion, leaving the customers off guard. Innocent physical contact gradually moves to their breasts and asses before her hands begin caressing between their legs. Though confused at first, the women grow increasingly responsive to the thrill of crossing the line.