Riko is a housewife who lives with her husband and daughter. She was living a comfortable and happy life, but petty quarrels with her husband, who became her remote worker, began to increase. One day, Riko witnesses her son-in-law, Masaki's splendid cock in her washroom. Riko's instincts are shaken by the stimulating sight she saw for the first time in a while...and Masaki, as if he had calculated this, begins to persistently try to approach her! "Mother-in-law is frustrated, isn't she? Let's be animals with me!" rice field….
