Sex is always a burning desire hidden deep inside every woman and it is often actively expressed by men, but sometimes in many situations, with different stimulating factors, women take the upper hand, just like the lascivious daughter-in-law Meguri in the movie. The skinny, weak husband who cannot satisfy his wife every time they have sex makes her extremely disappointed, especially hearing the sound of the mother-in-law moaning with pleasure every night while having sex with the father-in-law only adds to her discomfort. Unable to bear it any longer, after secretly watching the parents have sex multiple times and masturbating, the daughter-in-law took the initiative to seduce the father-in-law to have sexual intercourse with her and promised not to let anyone know. Everything continued to happen like that since the mother-in-law went on a trip for a few days, her needs kept increasing day by day, she even wanted to have the father-in-law's bloodline in her on ovulation day.