[Mosaic removed] Yuka, a mother, lives with her children and son-in-law Takeshi while her husband is transferred to a rural area.While she is living a life of frustration because she cannot meet her husband, she finds out that her daughter and her husband have not been together for a long time...One night, Yuka witnesses Takeshi masturbating alone.Yuka is fascinated by the size of Takeshi and seduces Takeshi, telling herself that she must release her son-in-law's sexual desire in place of her daughter.From that day on, Yuka, fascinated by Takeshi's sweet feelings, began to search for her son-in-law all the time...