Shen Zhiwei married into the Marquis of Jing'an. She was originally an "abandoned son" who came to marry her sister. Everyone thought that she would swallow her humiliation and let others bully her in the Marquis's mansion. Unexpectedly, she is neither humble nor arrogant, but also smart and perceptive - she is not soft on her eccentric mother-in-law, has the ability to deal with unruly and evil servants, and never gives in to protect those around her. She thought that the cold-faced marquis Xiao Jinyuan would regard her as nothing, but unexpectedly he supported her time and time again, secretly cleared the obstacles, and engraved "doting on his wife" into his daily life: "Whoever dares to touch my wife, ask me first." Shen Zhiwei gradually became attracted, but Xiao Jinyuan had already put her at the forefront of his heart: "From the day I married you, you are not a substitute, but my only wife."