Mio Kayama, a young wife and office lady who works at a company where her husband's brother is the president, is having an affair with her brother-in-law. While she is working in the office, he plays with her with a remote control vibrator, makes her give him a blowjob in the president's office and swallows the semen he ejaculates into her mouth. When her brother-in-law comes to visit her at home, he trains her to be a bitch while her husband is away! He humiliates her by making her walk on all fours, and then he forces her to enjoy pleasure with a vibrator and an electric massager! Now completely submissive, Mio swings her hips and moans in pleasure from incestuous sex! The company suddenly goes bankrupt and the affair ends, but her love for her husband deepens as they have creampie sex.
