Mio is an office lady working for a certain company in Tokyo. She has a plain appearance and a serious personality, but she is weak to pressure and easily swayed by those around her. Feeling that she has gained weight recently, Mio decides to visit a salon she saw online. However, that salon is a crooked establishment that performs oil massages using aphrodisiacs... Her gravure-level slim busty body becomes drenched in aphrodisiac oil, glistening as she spasms! Arches her back! Reaches ultimate climax!