During the Yuanqi era of the Great Zhao dynasty, Song Yan, a low-ranking judicial officer from a poor family, unexpectedly awakens the "Mingjing Bureau Case-Solving System" while reviewing an old case. With skills unlocked by the System, including autopsy, psychological profiling, and logical deduction, he unravels everything from rural mysteries to baffling cases in the capital, gradually exposing the collusion between powerful clans behind the corruption of the bureaucracy. He must protect himself amid the treacherous currents of officialdom while safeguarding his fated bond with Su Ruoheng, a clerk at the Court of Judicial Review. And as he investigates the injustice surrounding his father's case, he is drawn into a shocking conspiracy that could topple the dynasty. When the System warns, "The ultimate truth requires solving a hundred cases," Song Yan finally realizes that the courtroom gavel in his hand has long since become the lever that can shift the fate of the entire dynasty.
