From the moment they got married, Yua and her father-in-law were not very close, he was extremely rude which made her uncomfortable around him. Today, he suddenly came to the couple's house. Because he had to go for a health check-up, he stayed at their house for the night. The next morning, Yua's husband had to go on a business trip for three days, her father-in-law also went for a health check-up and then returned, but shortly after, he came back again. Seeing Yua drinking alone, he invited her to drink with him. Intrigued by his knowledge of alcohol, Yua was continuously made to drink by him until she was so drunk she didn't know anything anymore. Taking advantage of his daughter-in-law being asleep, he secretly undressed Yua, touched her, smelled her scent, licked her entire body, and took naked photos of her sucking his penis. When she woke up, she saw her father-in-law putting his penis in her mouth, Yua struggled but in vain, still drunk so she had no strength at all, allowing him to abuse her body. Surprisingly, the experience was not as bad as expected, his big and strong penis made her climax over and over again. Her husband had not been intimate with her recently, making her feel restless and uncomfortable, now being taken care of by her father-in-law allowed her to release all her pent-up desires. From then on, they secretly had sex throughout the three days her husband was away on a business trip, even when her husband returned, they continued to maintain this illicit relationship in secret...