The daughter-in-law continuing to care for her father-in-law becomes drawn to his mature, seasoned body through their increasingly intimate daily contact. But once the father-in-law discovers her secret, his malicious intent toward her pre-existing heart condition intensifies, driving their twisted relationship deeper into darkness. Behind her gentle smile lies a venomous allure that captivates him, evoking the image of a woman who could enchant men of the Showa era. Her seductive, hypnotic figure recalls the sultry bodies seen in vintage vinyl novels and pink films, resurrecting a world of temptation and desire.