Mako, who lives with her husband and his father at her husband's parents' house, honestly hated her father-in-law. Her father-in-law has a vulgar personality and often harasses Mako sexually. Even when Mako consulted her husband about it, he wouldn't listen at all, and Mako was really at her wit's end. Just then, her father-in-law finally revealed his true nature... A fleshy, super-perverted big-breasted wife who has her anus developed by her hated father-in-law's big dick under one roof and falls into anal pleasure.