Kozue, who lives with her husband and daughter, spends the night alone with her son-in-law Masahiro, but Masahiro gives up his drunkenness and expresses his love for Kozue, his hidden desires. explode! "It's a waste to leave your mother-in-law's body alone!" Kozue was upset by her immorality, but her sexless body felt the pleasure of being fucked by her son-in-law.
