Ayumi is the stepdaughter of a deceased wife, and in recent years, the time spent with Ayumi had grown longer than the days shared with his late spouse. However, Ayumi's arrogant husband shows no interest in working, leaving her unable to secure a job and instead spending her days drinking and wandering. As her husband continues to treat her as nothing more than a sexual object, her stepfather secretly develops intense desire for her. When Ayumi becomes aware of his feelings, her husband's possessiveness and obsession with controlling her intensify. Driven by jealousy, the stepfather eventually acts on his desires.