The protagonist, Lin Yuan, is a police academy lecturer who is proficient in criminal psychology and unconventional tactics. After his girlfriend died in a fraud in northern Myanmar, he volunteered to become an undercover agent and went deep into the crime capital controlled by the "four major families" in northern Myanmar. He did not choose the conventional thug route, but disguised himself as a "talent" who was glib, greedy for life, but always able to succeed by surprise. With his precise insight into human nature and endless tricks, he started from managing the park's "employees" as HR, and through modern management methods such as "corporate culture construction" and "KPI assessment", he managed to make a chaotic fraud park "in order", and his performance soared, thus gaining the appreciation of the family's senior management.
He dealt with the four major families, taking advantage of their conflicts and greed, provoking internal strife and eroding their power step by step. In the process, he had complicated emotional entanglements with the core female members of the four major families - the cold and ruthless eldest daughter of the Bai family, the arrogant female doctor who was forced to practice medicine here, and others. Every time the relationship heats up, there is a fatal crisis of identity exposure. When he gradually changes from a chess piece to a chess player, and is about to become the "fifth family" that can compete with the four major families, he faces the ultimate test: Will he completely darken and become the new king of crime, or will he personally ignite the fire that buries everything before dawn?