Shoko has a happy married life with Hiroshi. Despite getting along with her mother-in-law, she despises her lecherous and despicable father-in-law. He often touches her inappropriately, uses vulgar language towards her, and even exposes himself in front of her. He has been fascinated by Shoko's seductive body for a long time. One day, unable to restrain himself any longer, he forcefully rapes her and ejaculates inside her womb while his wife is out shopping. Since then, he continuously demands sexual favors from her. He ejaculates inside her on the days when she is most fertile. Despite hating this situation, Shoko cannot deny the sexual skills, flexibility, and strength that her father-in-law possesses, which her husband lacks. He brings her to climax repeatedly, allowing her to experience pleasures she never knew before. Eventually, Shoko becomes pregnant. During this time, she did not have sexual relations with her husband, so the baby in her womb is surely...