Yosuke, who is freeloading at his brother's house, has feelings of guilt for his brother's wife, Aoi. One day, Yosuke witnesses Aoi masturbating because of her frustration. "Please! Just once!" "...Will you absolutely keep it a secret from that person?" Surprisingly, Aoi accepts Yosuke's request with the condition of "only intercrural sex." However, Yosuke had a secret medicine prepared for this day...
