The story tells the story of Shen Jinghong, a loyal minister. After her whole family was framed and executed, she, as the only survivor, concealed her name and sneaked into the palace disguised as a humble palace maid, waiting for an opportunity to investigate the truth and avenge her family. Relying on her extraordinary resourcefulness, calmness and keen insight that she trained as a female secret guard, she has repeatedly saved the day in the crisis-ridden harem.
Her uniqueness attracted the attention of the sinister and suspicious emperor Xiao Xuance. Xiao Xuance regarded her as an interesting chess piece, constantly testing and using her, but he was unknowingly attracted by her tenacity and wisdom. Shen Jinghong took advantage of the emperor's attention and climbed up to high positions step by step from palace maid, Cai Ren, and Jie Yu, and gradually came into contact with the core of power. He discovered that the truth behind the family's downfall was far more complicated than imagined, involving remnants of the previous dynasty, harem forces, and court factions.
In their dealings with various forces, she and Xiao Xuance gradually transformed from chess players and chess pieces plotting against each other into allies who were both enemies and friends and supported each other. In the end, the two teamed up to uncover a shocking conspiracy and clean up the traitors inside and outside the court. Shen Jinghong not only cleared the grievances of his family, but also relied on his own skills and achievements to break secular prejudices, and finally ascended to the throne, working side by side with the emperor to create a new prosperous age.
