After losing her husband, Sakura raised her daughter alone. Her well-raised daughter got married and lived with her. One day, while living a plain but happy life, something happened. She accidentally saw her daughter and son-in-law's nighttime activities and was shocked. The mild-mannered and serious son-in-law was fucking her daughter like a beast, making her cum over and over. Seeing this, memories of 【sex addiction and insemination】 resurfaced, and she couldn't control her lust...
