On his way to work, Shigeru leads a lost woman by chance. The woman who gave me directions when I came home after work was at home for some reason. Then, my mother introduced me to a friend and a house, saying, "You said your friend was coming to stay." Shigeru Sumika, who has a beauty that doesn't seem to be her mother's classmate, remembers the throbbing of her heart. Excited and unable to sleep, Shigeru accidentally witnesses Sumika indulging in masturbation when he leaves the room. Shigeru, who was excited by the silliness of writhing in secret, pushed her down unintentionally.
