Minori, a married woman who has been married to her husband's family for 4 years. She doesn't mind living with her father-in-law, whom everyone dislikes, and lives a good relationship. Minori, who was leading a happy life, only had dissatisfaction with making babies on ovulation days, which was a rule between the couple. Short sex that only receives her bland husband's sperm. On that day too, after finishing the act and heading to take a shower, she runs into her father-in-law. Her father-in-law notices Minori's frustration and, unable to suppress her sexual desire that she had been enduring, overpowers Minori…