Lawyer Wen Xi enters into a marriage of convenience with Shang Chen after a mix-up over her birth identity. From the awkwardness of living separately to agreeing to call each other every week, the two gradually grow closer amid the Yan family's hostility, pressure from her adoptive mother, and workplace turmoil. Shang Chen appears old-fashioned and rigid, yet repeatedly stands up for her, while Wen Xi, cool-headed and independent, slowly learns to rely on him. When Yan Zhao's drama finally comes to an end, the two embrace beneath the setting sun, moving from being merely "suitable" for each other to realizing that they cannot live without one another.