Yuka, a mother who lives with her children and son-in-law Takeshi, while her husband is transferred to a rural area. When she is living a frustrating life without being able to meet her husband, she knows that her daughter and her husband have not acted for a long time. One night, Yuka witnesses Takeshi masturbating alone. Yuka, who was fascinated by the size of her cock, told herself that she had to dissipate her son-in-law's sexual desire instead of her daughter and seduce Takeshi. From that day on, Yuka, who was fascinated by Takeshi's Ichimotsu, began to seek her son-in-law all the time.
