Part-time housewife Momo supports her husband's company. Normally dedicated to her job and family, she works hard every day for her loved ones. One day, she returns home with her husband's client department manager. This manager belongs to the main contractor of her husband's company, making him a crucial figure since Momo's husband, as a subcontractor, relies on his business. Because of this relationship, Momo has always meticulously taken care of him—offering drinks, snacks, and constant refills—as a matter of routine. But everything changes one day. Days later, she begins to sense a new, unfamiliar situation unfolding, shifting both her relationship with her husband and her connection with the manager in an entirely different direction.