Married for a few years, Miki and her husband gradually became distant. Life passed by in a boring and meaningless way. But there was someone who added color to Miki's life. Aoi was a colleague at Miki's part-time job. Noticing that she seemed troubled, he invited Miki to have a drink. A little drunk, Miki shared everything with Aoi, who listened attentively and learned that Miki was very lonely. In fact, Aoi had liked Miki for a long time. He transferred from the kitchen to work here just to be with her. Seeing Miki so lonely, Aoi wanted to fill the void in her heart. Thus, their secret relationship began. At first, Miki rejected him, but as she felt Aoi's affection for her, she gradually became more accepting of him and took the initiative in their sexual relationship...