Mei, frustrated with her husband's absence from work, was masturbating in the living room in the middle of the day. However, she was seen by her son's friend (Ataru), who happened to be visiting. Furthermore, Ataru was excited to see his friend's mother masturbating and took a picture with his smartphone, and used it to blackmail Mei! ! With her weakness exposed, Mei tried to refuse her son's friend, but she couldn't resist and he played with her body...