Chen Qinghe is an apprentice blacksmith in Liuhe Village. She looks like a fairy, yet is robust with superhuman strength, causing blind dates to run away in fright. To search for her younger brother Chen Xiaotie, who was forcibly conscripted into the army and has been missing without a trace, she goes to the capital alone and unexpectedly uncovers her true identity as the long-lost genuine county princess of the Prince of Zhenbei's estate. After recognizing her relatives, she seeks no wealth, only to investigate her brother's whereabouts. Her sincere heart moves everyone in the estate. Her fairy face and divine strength make her famous throughout the capital, earning deep favor from the Empress Dowager, while also forging a fate full of misunderstandings with the Marquis estate's young master Shen Mo. However, rumors frequently spread in the capital about beautiful women going missing, and her younger sister is also mysteriously kidnapped. To save her loved ones, she volunteers herself as bait, stepping closer and closer to the shocking conspiracy hidden in the dark corners of the capital.