Kenji, a bachelor, one day meets a married woman named Tomoe at a local izakaya. She had a falling out with her husband and was feeling lost, so they ended up sitting together for a drink. This chance encounter led to them becoming close friends, and eventually, they started a physical relationship. Kenji gave Tomoe a spare key to his apartment, and she began visiting him after her husband left for work, carrying shopping bags in hand. To fill the void left by the growing distance between her and her husband, she found solace in spending intimate moments in the younger man's apartment...
