Shen Yuan, the daughter of the Grand Tutor, suffered from a strange illness and was supposed to be an abandoned son of the royal family. On the eve of her wedding, she was bound by a self-proclaimed "Palace Fighting Survival System" and forced to complete a series of fatal tasks to get closer to the emperor and stir up trouble in the harem in exchange for a life-sustaining pill. She was forced to evolve step by step from the pitiful Bai Yueguang to the "demon concubine" favored by the emperor. In the process of completing the task, she not only had to deal with the harem's overt and covert attacks and the schemes of the previous dynasty, but also dealt with the temptation and control of the evil emperor Xiao Jingheng. As she gradually accumulated strength and tried to escape from the control of the system, she discovered that the system's ultimate mission was closely linked to her hidden shocking life experience and the fate of the entire dynasty. In the end, she grew from a manipulated chess piece to a chess player. She joined forces with the emperor to bring order to the chaos in the name of "Demon Concubine".
