Saeko pours her extraordinary affection into her son Kenichi. When it comes to that doting, it satisfies the woman's pain by imagining Kenichi's obscene appearance and indulging in masturbation rather than working with her husband at night. Still, it's a woman's nature to want to have the real thing inserted. And Saeko has a relationship with her husband's younger brother who visited while her husband was away. She doesn't know that she is being watched by her beloved son... "Mommy belongs only to me!" Kenichi, who is filled with jealousy, pushes Saeko down.
