Later-generation criminal investigation expert Zhao Lei is struck by lightning while conducting a field autopsy and transmigrates to the Tang dynasty. Drawing on his exceptional investigative experience and advanced forensic theories, he solves numerous criminal cases and wins Li Shimin's favor. He is ennobled as Duke of Korea and appointed Minister of the Court of Judicial Review, earning the admiration of beautiful women. From then on, surrounded by beauties, he rises to the pinnacle of life.