Karin Touno, a college student, goes to an esthetic salon for the first time to become prettier for her boyfriend. The first session is effective, and her boyfriend compliments her, boosting her confidence. She decides to continue going to the salon, but the unscrupulous aesthetician, who has been eyeing her, slips aphrodisiac into the massage oil and seduces her with obscene massage. Although she vows never to return, the pleasure of the aphrodisiac massage lingers in her mind, and her legs unconsciously lead her back to the salon…