Shao Jia, a gangster who grew up on the streets in the 21st century, unexpectedly entered the Lin'an Mansion of the Southern Song Dynasty after a car accident. He is full of bad jokes and doesn't play by the rules, but he uses modern street wisdom and a stolen "Encyclopedia of Charlatans" to navigate the ancient world. Opening gambling rooms, engaging in bidding, setting up arenas, and building "intelligence networks", he upgraded street fights into dimensionality reduction attacks. But when he got into trouble with Zhao Chongli, the son of the richest man in Lin'an, a ruthless character who was elegant on the surface but extremely sinister at heart, the real killing spree had just begun. Zhao Chongli quietly laid out a dragnet to destroy Shao Jia's reputation and die without his body intact. Can Shao Jia make a comeback with his "wild ways"? Hong Kong gangsters versus Southern Song Dynasty traitors, who is the real king of the world?