Incest with incest. Mother, please give birth to my child...

After her husband's death, her mother, Natsuko, co-runs the restaurant she left behind with a man named Shigemoto. Tomohiro, the only son, did not think well of the relationship between Shigemoto and his mother. ``He's going to make it all his own one day!'' In order to continue to protect the restaurant his father left behind, he desperately needed a child to succeed him. However, Tomohiro's wife is ill and unable to bear children... Tomohiro, driven into a corner, forcibly rapes his beloved mother...