Ever since her husband was hospitalized due to an injury, Yuki had been feeling sexually frustrated. At that time, her husband's best friend, Tetsuya, came to check on her, worried about her alone. Yuki's lonely body began to ache at the manly strength that her husband lacked, and as soon as she saw Tetsuya off, she was instantly lost in obscene fantasies. Tetsuya had only come to help with the housework. And yet, what a thing to do to me... Even though she was tormented by guilt, her hands could not stop reaching for her private parts. However, Tetsuya returned at that moment, having forgotten something...