A loving couple receives a visit from the husband's father. After losing his wife and quitting his job, the father-in-law, who had given up on life, decides to make his daughter-in-law 'のそみ' his sex slave. One day, she is caught masturbating by her father-in-law. Seizing her weakness, he pressures her. Although she tries to resist, her body cannot withstand his experienced sex, and she ends up being taken by her father-in-law's dick while her husband is beside her.
