[SPRD-1444] Fertility Mihara Sami who asked her father-in-law to live in her husband's 10th

The Mihara family lives together with their daughter-in-law, husband, and father-in-law. However, he was troubled by the fact that he was not blessed with children, so he consulted his father-in-law. The bride who thought that father-in-law's sperm might be strong because there were a lot of brothers in the husband asks father-in-law to seed it, too. At first, she intends to start business, but she gradually becomes depressed about sex with her father-in-law. There was a promise to end the relationship if they had a baby, and when they tood pregnant, their relationship ended. However, after giving birth, the two who finally could not stand it resumed seeding mating again.