"Ryoichi", who was a professor at the university until retirement age, married his student "Michiru" and retired. "Ryoichi" was not satisfied with the young "Michiru" due to erectile dysfunction, but he was not particularly dissatisfied because he loved "Ryoichi". One day, "Ryoichi", who was struck by a mysterious illness, suddenly loses his eyesight. Hearing that is sharpened in exchange. Ryoichi, who fell into desperation, made a plan saying, "I want to hear the pant voice of my wife I don't know."