My father-in-law, who had been doing his job and play well until a while ago, has become completely old due to his injury. Tsubasa, a young wife who is worried about her father-in-law. One day, my father-in-law told me that he wasn't feeling well due to erectile dysfunction, but Tsubasa was naked and lustful for the first time in a while. Tsubasa sways between the desire to contribute to her father-in-law and the sense of immorality towards her husband. My father-in-law's fierce sex approach, which I don't mind pretending to improve my erection, was ridiculous.