Recently, her daughter Kanoko has been doing strangely well, and her worried mother Yumi. At that time, when she looks at the video on Kanoko's cell phone, there is her self-shot video... Yumi, who learned that her daughter was appearing in an AV, immediately demands that the director Horaguchi take down the distribution. However, he doesn't agree so easily, and Yumi herself ends up appearing as a substitute. She debuts in a doujin AV, saying it's for her daughter, but her sexless body is overwhelmed by pleasure combined with shame, and before she knows it, she starts seeking extraordinary stimulation...