Head of the Legalist School, titled Qian Fazheng, and master of the Bright Mirror Department. He is a wise and formidable man in his fifties, legless and confined to a wheelchair but possessing sharp intellect. He is trusted by Empress Jiang Li to investigate important matters. In the story, he personally investigates Lin Che’s claim about Zhou Xianchun, swiftly uncovering the truth and presenting evidence. He represents the power of law and justice in Daqian, and his presence ensures that even nobles cannot escape accountability.