A dissolute young lord, branded the "Calamity Star of Great Yan" by the Imperial Preceptor, is reduced to working as an executioner at the public execution grounds.
A forensic detective unexpectedly transmigrates into the body of the young lord, who died suddenly, and gains the ability to read minds. Using modern forensic and criminal investigation techniques, he reconstructs ancient mysteries, while his mind-reading ability tears away the masks worn by the powerful. When he declares, "The execution ground isn't the end. It's where the truth begins," every petty villain in the dynasty trembles.
Drawn into the struggle for the throne, he uses a string of bizarre cases as his chess pieces, turning case files into a bloody path to the imperial throne.
"If you call me a calamity star, then let these stars bear witness: I will make the laws of Great Yan higher than the will of heaven!"
He severs heads, shatters conspiracies, and fights for the brightest justice in this chaotic age.