Yayoi is a divorced woman running a snack bar with her daughter and son-in-law, living a peaceful life. Known by the name Mari Aoi, she had been married once before but has since built a new family and enjoys a happy daily life. However, she begins to attract the attention of Murakawa, the lecherous head of the local shopping district. Though she initially resists his advances, the long-forgotten pleasure he awakens in her begins to consume her thoughts. As Murakawa's perverted actions grow increasingly intense, Yayoi's resolve starts to waver. At the same time, her ex-husband, Yoshida, reappears, begging for a reconciliation. Deep down, Yayoi has always possessed a lustful nature, and her sexual desires soon spiral out of control. Even Rishi, her daughter's husband, who has long harbored secret admiration for her, finds himself irresistibly drawn to her. Thus, Yayoi's life begins to unravel into a tangled web of passion and forbidden desire, leading her down an unexpected and sensual path.