A nephew visits from the countryside for work. Yoshie Kano, his aunt, informs her son about the visit and begins tidying up the house. Though they're supposed to be sharing a friendly meal, the nephew keeps his eyes fixed on Yoshie, stealing lustful glances at her body. Fifteen years ago, during a trip back to the countryside, they spent a forbidden night together—an unforgettable encounter that still burns in his heart. Yoshie has tried to forget that past transgression, but now, faced with her nephew's intense emotions after all these years, she can no longer resist and surrenders completely to his desires.