Nami's husband is so busy with work that they barely have time to talk, let alone enjoy a physical relationship. Seeking emotional support, Nami confides in her kind and understanding father-in-law. Gradually, she begins to feel better thanks to his gentle comfort—but soon notices a shift in his behavior. One day, the two find themselves alone together as usual. While bathing, her father-in-law unexpectedly asks Nami to wash his back. As her clothes get wet and her nipples become visible through the fabric, his gaze locks onto her body, and the atmosphere begins to change.