Mayu, a neat and tidy masochistic wife, is forced to wear bright red erotic underwear and gradually begins to feel excited. With her wedding ring still shining on her ring finger, she is forced to hold the blackmailer's erect penis, and when he starts fingering her, she hesitates at first, but gradually her hand tightens as she grips the penis. She is then generously smeared with aphrodisiac oil, and when she is spanked on her ass while on all fours, she shakes her ass like a bitch and even wets herself. Then, as the penis sinks into her shaved pussy with a squishing sound, she quickly rises to heaven with her hips in the air. When he thrusts her hard from below in the cowgirl position, she squirts a spectacular cumshot, and the semen that overflows from her hairless vagina runs down her thighs...