That JAV

A married woman, married for three years, lives with her husband's father. The wife, frustrated because her busy husband is often away on business trips and they have no conjugal activities, masturbates, but her father-in-law grins at her, except when he sees her doing it. One day, the courier with whom she is having an affair comes over and they have sex, but again the father-in-law peeks in. Then, the father-in-law asks for his wife's body using the masturbation and the fact that he witnessed the affair as a story. The father-in-law threatens to tell her husband about the affair, but she can't refuse and opens her legs. Furthermore, she is raped at night and made to cum many times by her father-in-law whom she hates.