A modern young man traveled through time and became Chen Xiaofu, the illegitimate son of Zhou Dynasty, and transformed into a supervisory censor. With evidence of crime in hand, he teamed up with Lao Gui from the Department of Internal Affairs to crack down on corruption in the court, dealing with factions such as Zuo Xiang and Prince Qing. The former Taifu An Zhiyu harbored restoration ambitions, and many parties set up schemes to harm him. The Black Lotus Sect and various forces also successively tried to obstruct him. Chen Xiaofu relied on modern thinking, top-notch martial arts, and the help of people around him to resolve dangers time and time again, and smashed various rebellion conspiracies one after another.