Aki, who had been married to her older husband for six years and was growing increasingly lonely due to the lack of marital intimacy, learned one day that her husband's boss, Sagawa, was in the same situation with his wife. After her husband fell asleep, Aki and Sagawa, drinking alone, found themselves talking about their circumstances. Sagawa, unable to hold back, embraced Aki. Aki, who hadn't been held by a man in a long time, reacted physically despite her hesitation about being with a man other than her husband. From then on, whenever her husband was away, the two began to secretly engage in repeated sexual encounters.
