Yuko, the wife, decided to live with her father-in-law, Hirozo, after he was diagnosed with alcoholism, along with her husband, Koichi. The next morning, after Koichi left for work, Hirozo started drinking again. "No! You can't drink!" Yuko tried to take the alcohol away from Hirozo, but they ended up in a struggle, and Hirozo, in a drunken stupor, raped Yuko. Despite it being forced, the fact that she had a physical relationship with her father-in-law tormented Yuko...
