Annoying existence called mother-in-law ... That Eros that goes crazy for a man! A work with the theme of mother-in-law presented by FA professionals! This work contains four stories about mother-in-law! There are many rich situations, such as a husband who forcibly makes his wife's mother a thing, an incest son who has returned to his parents' house, a son who is a remarriage partner of his father, a favorite mother who seduces her daughter's husband! Please take this opportunity to fully enjoy this product, which is unique to FA professionals!