A lewd stepfather who has retired and is now free to join his wife

(Daddy-in-law, I was looking at my butt again today...) My father-in-law lost his wife early and was overwhelmed with sexual desire. The rotten sexual desire was about to be directed towards the young, beautiful Yuka. With the desire to escape from her stepfather's lewd gaze, Yuka talks to her husband, but she can't deal with him. At that moment, he ends up alone with his father-in-law. When Yuka catches running away, her stepfather begins to say, "Please have me and a grandson."