Meguri enjoys a comfortable marriage with her kind husband, but she cannot stand living with his vulgar, insensitive father and enduring his daily sexual harassment. One day, while her husband is away, the father-in-law finds her asleep. He quietly pulls aside her underwear, devours her sweaty pussy, and brutally rapes her with no mercy, finishing inside. From then on, he keeps waiting for chances to assault and defile her young body whenever his son is absent.