Five years after losing her beloved husband, Nanako, a beautiful-busted widow, had given up on remarriage and lived in deep sorrow. However, as physical pain approached its limit and memories of her husband refused to leave her mind, on the anniversary of his passing, recollections of their sex left her dripping wet with arousal. Suddenly, her father-in-law appeared, and far from resisting, upon seeing his massively erect cock, Nanako became wildly excited. Overcome by the taboo thrill of being taken right before the family altar, she finally reached a powerful, shattering orgasm.