Aono and his wife end up living with her father-in-law after his wife's death. Mizuki is frustrated by a lack of sex, while her father-in-law is lonely after losing his loved one. While her husband is at work, the moment they are alone, Mizuki can't resist, pushing Mizuki down and having creampie sex! The physical compatibility between the father and daughter is so good that their sexual desire explodes. They forget all about guilt and reason and devour each other instinctively...