Recently, her daughter Kanoko has been spending her money strangely well, and Yumi, her mother, is worried. One day, Yumi sees a video on Kanoko's phone, and it's a homemade video of her... When Yumi finds out that her daughter is appearing in an adult video, she urges the director, Horiguchi, to take it down immediately. However, she doesn't agree so easily, and ends up appearing in the video herself instead. At first, she makes her debut in a doujin adult video, saying it's for her daughter, but her sexless body becomes addicted to pleasure combined with shame, and before she knows it, she begins to crave the excitement of the extraordinary...