Hibiki Otsuki WAAA-602 was attacked at night by her disliked father-in-law.

Hibiki Otsuki lived a comfortable married life with her gentle and kind husband. However, there was one thing Hibiki was unhappy about: living with her vulgar and unromantic father-in-law. She was fed up with his daily sexual harassment. One day, her father-in-law found Hibiki asleep while her husband was away. Taking advantage of his son's absence, he secretly pulled down her underwear, greedily licking her genitals, which smelled of her body and sweat, and then brutally and mercilessly raped her with his penis. From then on, Hibiki's young body was continuously defiled by her father-in-law, who waited for an opportunity to attack…