Yuu, a married woman who committed adultery, was caught having creampie sex with a younger man at her home and is now blackmailed by her neighbor, forcing her into complete submission. She's made to perform humiliating masturbation, scrub his body like a soap girl in the bath, and is tormented with vibrators and electric massagers until forced to deepthroat and receive cum in her mouth. Confined in a room, she's repeatedly used as a sex slave whenever he returns—her breasts roughly groped, her ass turned bright red from spanking. When subjected to intense lesbian sex, her deeply masochistic body erupts in powerful orgasms.