Juri gets married at work and becomes a full-time housewife. My husband is currently on a long business trip and living with my daughter and her husband. However, living without my husband is still lonely... At that moment, he accidentally discovers that his son-in-law, Ichiro, is an incredible slut. Fascinated by his ecstasy, Juri continues to give her an obscene invitation day and night, saying, "I'll be the one for my daughter..." Unable to resist his stepmother's seductive lewd behavior, Ichiro crosses the line and is now captivated by pleasure...