YST-056 I'm being blackmailed. Sakura Kirishima

Sakura is a submissive, submissive wife who can't break off her relationship with a man. Even though he threatens to tell her husband about their relationship, she listens to him when he gives her pleasure with a cock bigger than her husband's. She is toyed with and brought to orgasm over and over again by a relentless electric massager, and the pleasure torture gradually fades her sense of immorality towards her husband.