On the day her husband leaves for training, his colleague shows up. It seems her husband had sex with the wife of a client... His wife, Kaoru, has a hard time accepting reality. However, it was all a fabrication, and the colleague just wanted to have sex with her. In order for her husband to avoid being fired, the colleague had to offer her her pure body as a tribute. Kaoru repeatedly refuses and tries to escape, but when her private parts are fondled, she is given a passionate kiss, and the man's tongue is forced into her vagina, she wriggles her hips against all reason... For three days from that day, while her husband is away, Kaoru is repeatedly inseminated and reaches orgasm again and again. Gradually, she begins to seek pleasure herself until her husband returns...