Day after day, night after night, the daughter and her husband were busy trying to conceive. They desperately wanted a child. However, they were not blessed with one. The protagonist of this story, the beautiful mother Marina Matsumoto, was living peacefully with her harmonious daughter and son-in-law. Of course, she secretly looked forward to the birth of her first grandchild. One day, while cleaning the bath near her mother, the daughter and her husband were whispering to each other. Then, after being told that there was something they wanted to discuss, the mother received a shocking request from them… It was an illicit insemination, where the mother, worried about her childless daughter and son-in-law, fell into depravity…
