A son's wife takes care of her father-in-law, who has been living listlessly since the death of his wife, hoping to somehow help him regain his spirit. Because they are family, the daughter-in-law frequently exposes herself in defenseless ways, causing a surge of arousal to return to the listless father-in-law's lower body. Begged by her father-in-law, "Could you let me hold you just once...", the daughter-in-law gives her body to him on the condition that it only happens once. While the father-in-law is refreshed and satisfied, the daughter-in-law, having awakened to sexual pleasure, transforms into a little devil who repeatedly teases her father-in-law, taking pleasure in forcing him to ejaculate until his semen is completely exhausted.
