Chen Mo, a genius from the top police academy, is proficient in criminal psychology, trace examination, forensic basics, logical profiling, and has extensive knowledge of ancient and modern criminal case classics. He was originally a rising star in the police world. A sudden series of car accidents took him to the Yong Dynasty, where rituals and music were broken, injustice cases were rampant, and the powerful dominated the world. He became a low-level policeman in Dali Temple who was marginalized and did nothing. Outdated and primitive investigative methods, rules that disregard human lives, intricate court forces, and a humble identity, all shackles trapped the reborn Chen Mo. He uses modern criminal investigation knowledge as a sharp edge, starting from small urban cases, cracking countless old unsolved cases and exposing layers of conspiracies. Once he became famous, he was known as the Great Detective all over the world. Later, he was involved in the struggle to seize the rightful party, established himself based on the case, took charge of hundreds of officials step by step, ascended to the position of prime minister, reorganized the criminal law, and purged the government and opposition parties.