The movie is about the daughter-in-law Hotaru Mori, who is spoiled and has a high demand for intimacy. Although her husband serves her regularly every day and is not impotent, it is still not enough for her satisfaction. Therefore, every day when her husband goes to work, she secretly has affairs with her father-in-law. At night, she has sex with her husband, but it is still insufficient. In the middle of the night, she sneaks to the living room to have her father-in-law satisfy her needs. What a sexually indulgent daughter-in-law.