A series of strange cases in the Northern Song Dynasty exploded, the laughing corpse in the secret room revealed the shadow puppet secrets of the ghost market, the "returner" in the border county turned into a corpse in a blink of an eye, the treasures in the capital disappeared out of thin air, the double locked murder case in the secret room, the cannibal curse hidden in the isolated island manor, the royal family's "dragon scale" mark points directly to the jade seal conspiracy! Strange cases are layered with minefields, clues and traps, witnesses turn into murderers, and even "Shadow Master" and "Nirvana Cult" hide two faces. During the Renzong Dynasty of the Northern Song Dynasty, Bao Shirong, the nephew of Bao Zheng, entered the court to solve the case as a prostitute. When he first became known as the "Jade-faced Little Lord Bao", he shocked both the government and the public! Bao Shirong relied on his incredible powers of observation to uncover the conspiracy and break the deadlock, and even secretly fell in love with Murong Zhi on the way to pursue the murderer. Every case has its twists and turns, and every step of the investigation is on the edge of the knife to see how the "Jade-Faced Little Mr. Bao" uncovers the mastermind behind the scenes and protects the innocence of the Song Dynasty Prison!