[SPRD-1444] Fertility mihara Sumire who asked her father-in-law secretly to her husband

The Mihara family lives together with their bride, husband, and father-in-law. However, it worried about the child's not being easily given, and it consulted father-in-law. The bride who thought that there are a lot of brothers in the husband and father-in-law's sperm is strong asks the father-in-law to seed it though father-in-law also did not find the answer. At first, she intends to start business- but gradually becomes devoted to sex with her father-in-law. There is a promise to end the relation when the baby is done, and the relation of two people ends when the pregnancy is understood. However, after giving birth, the two people who were finally unable to endure resume seeding mating again .