Haruo was worried that his usually cheerful stepmother Yumi had recently started to seem more spacey. However, for the first time in a while, Yumi yelled out a warning to Haruo. It was about "adjusting his penis position." Perhaps because Haruo's penis is bigger than most people's, he had a habit of unconsciously adjusting it. Haruo was embarrassed to be told off by his stepmother for something like that, but for some reason Yumi began to play with Haruo's huge penis with a gleeful look on her face...