Her daughter and her childhood friend have been together for a long time, and her mother, Kaori, is happy that they have finally become boyfriend and girlfriend. Today, they had dinner together and Kaori smiled when she heard that she was going to stay over. Her daughter's room became quiet, and for some reason Kaori was excited, but her daughter went outside crying. Surprised, Kaori asked him what was wrong, and he told her that their first act hadn't gone well. He then showed her his erect crotch and began to stroke her hand. Kaori was confused. He then asked her how to do it, and hugged her...