Amatsuki Anzu WAAA-404 was attacked at night by her disliked father-in-law.

Anzu lived a carefree married life with her gentle and kind husband. However, she had only one complaint about this life: living with her vulgar and tasteless father-in-law. Anzu was fed up with her father-in-law's daily sexual harassment… One day, while her husband was out, she found Anzu's father-in-law asleep. Taking advantage of his son's absence, he pulled down her underwear, greedily enjoying the mixture of her feminine scent and sweat on her genitals, and mercilessly raping her with his penis. From then on, her father-in-law, finding another opportunity, continued to violate her young body…