Jiang Jinyue, who was originally the daughter of a declining aristocrat, was forced to disguise herself as a man in order to save her family because her twin brother ran away from marriage. In her place, she became the lowest-ranking "painting waiter" in the Hanlin Academy. She used management concepts that transcended the times and an accurate grasp of people's hearts to skillfully stand up for herself in the crisis-ridden court and resolve repeated attempts by political opponents. From a humble court painter, she gradually became involved in financial reforms, border management and even imperial power struggles. Using her paintbrush as a blade and resourcefulness as her armor, in the male-dominated power game, she not only cleared the grievances of her family, but also unexpectedly uncovered the shocking secret that led to the change of dynasty, and finally found her own place and destination in the emotional and moral choices.