Midara na Aniyome ni Sasowarete -Yokkyuu Fuman Jukujo no Tokubetsu Jugyou | 淫らな兄嫁に誘われて ～欲求不満熟女の特別授業～

One summer. It was an important time for Mamoru to be a ronin. That summer, his brother returned home with his wife, Yumi. When he first met Yumi, he yearned for her to be so beautiful in the world. I'll be taking care of you for three days starting today! And so began the summer with the woman he admired…