Mitsuo began living in a two-generation household after his son got married. One day, bored after retirement and drinking alone, he caught his son's wife, Kana, and kept urging her to drink until she became intoxicated... Excited by Kana's moist eyes, slightly heavy breathing, and strangely erotic gestures, Mitsuo took advantage of the opportunity and forcibly raped her. Although Kana rejected him, saying it was only for this once, Mitsuo, having found a new pleasure, was not about to simply accept that...