Sex is always a burning desire hidden deep inside every woman and it is often actively expressed by men, but sometimes in many situations, there are many different stimuli and women are the dominant party, just like the lewd daughter-in-law Meguri in the movie. Her husband is thin, physiologically weak and unable to satisfy his wife every time she has sex, which makes her extremely disappointed, especially every night hearing her mother-in-law moaning very happily when having sex with her father-in-law makes her even more uncomfortable. Unable to bear it anymore, after many times secretly stalking her parents for sex and then masturbating, the daughter-in-law took the initiative to solicit her father-in-law to have sex with her and promised not to tell anyone. Everything has continued since her mother-in-law traveled for a few days, her need is increasing, even wanting to have her father-in-law's blood in her body on the day of ovulation.