15 years of marriage. - One day, Kyoko, a wife who was feeling lonely and worried that her husband no longer wanted her to do anything for her, found herself alone with Mukai, a young man who works at an electronics store that she patronizes. - Mukai then told Kyoko that he liked her and hugged her and kissed her. - Kyoko's resistance loosens due to the joy of being wanted as a woman. - And, I wonder when it will be the first time... When Kyoko accepts a man's cock, another person's cock, the shocking pleasure causes her to convulse and climax without waiting for the piston.