Secret Sex With My Former Daddy

Kanna is visiting her fiancé Mikiya's family before their wedding. When she meets Mikiya's father, she realizes that he is the man she once met as a sugar-daddy and who had dominated her sexually. Mikiya gets drunk at dinner, and falls asleep. Her father-in-law, who knows Kanna's past identity, shows her a sex video he had taken of her and tells her that he will test her to see if she can become a proper wife for Mikiya, his precious son. (Source: DLSite, translated)