Lin Wanxing stayed up late to read the ancient Chinese novel "The Prosperity of a Concubine", and when she opened her eyes, she was transformed into the concubine of the same name who was forced to be a stand-in in the book because her facial features resembled those of the villain Shen Jinghan, Bai Yueguang and Su Qingyi. The original owner had a miserable ending. He died of cold and starvation after being rejected by Shen Jinghan. Lin Wanxing, who was well aware of the plot, decided to escape from the Jingan Hou Mansion in order to protect himself. But when she was looking for a way out and trying to escape through the secret passage in the West Cross Courtyard, she unexpectedly encountered Shen Jinghan being assassinated. Whether to take advantage of the chaos to escape, or to have a different entanglement with the vicious villain in this treacherous Hou Mansion, Lin Wanxing's journey of survival through books begins.
