A blood type mismatch tore apart the illusion of Wen Xi's life. She was not the legitimate daughter of the Wen family. After weighing her family's interests, she married Shang Chen, the heir to a wealthy family in the capital. This marriage, which began with a contract, was extremely cold at first. Lawyer Wen Xi and powerful man Shang Shen lived parallel lives under the same roof. Until the light left in the middle of the night, the clumsy hug when sick, the firm protection amid rumors, and the silent guardianship gradually melted away the barriers. During their countless daily days together, they grew from a slow and frozen maturity to a deep affection that could not be hidden in their eyes. It turns out that the best fate is not to fall in love at first sight, but to become each other's destiny after being together for a long time.