The former thief Saint Bai Zhantang retired to Tongfu Inn and suddenly traveled decades into the future while fetching water one morning. With no money, he was forced to work in his old trade for a living, sneaking into the palace at night to steal some travel expenses. Unexpectedly, he was caught in the palace by Lu Xiaofeng, who came to expose the truth about the Nanping Prince's conspiracy. From then on, the combination of the detective and the thief began to live a life of being shameless, laughing and swearing, climbing over the walls, and drinking thousands of glasses of wine.