Yuuichi, who lives alone, one day meets Nao, a married woman, at a nearby izakaya. She is at her wits' end due to a fight with her husband, and they end up drinking together. From that point on, they become close, and eventually start having a physical relationship. Yuuichi gives Nao the key to his house, and she starts coming over with a shopping bag whenever her husband goes to work. To distract from the loneliness of their missed encounters, they spend intense time together in his room…
