Everything started when Yuna's mother-in-law passed away at the end of last year. Seeing her father-in-law left alone, Yuna's husband decided to bring him to live with the couple. But since his wife's death, the father-in-law became moody, quiet, and even skipped meals, causing Yuna's husband to worry. Today, her husband had to go on a business trip, leaving Yuna and her father-in-law at home. Her husband was always busy with work, so Yuna had not been satisfied for a long time. She could only masturbate to satisfy her own sexual desire. The father-in-law accidentally discovered this and took advantage of her, promising to only have sex with her for ten seconds. And after ten seconds, he withdrew and returned to his room, leaving Yuna feeling disappointed. The next day, Yuna had to stay out all morning because she couldn't face her father-in-law. When she returned, she found that her father-in-law had eaten all the food she had prepared, and he seemed much happier than before. The father-in-law knew that his daughter-in-law was craving sex, but she had not yet overcome her psychological barrier. Therefore, he decided to take the initiative to help her. He approached her, passionately kissed and licked all over Yuna's body, and inserted his penis into her mouth and vagina. And that final psychological barrier was finally removed. During the time her husband was away on a business trip, Yuna became more proactive, indulging in sexual activities with her father-in-law. Some time later, Yuna became pregnant, and her husband was overjoyed and happy. But she knew that the child in her womb was not her husband's...