Male Lead: Zhao Chuang, a former detective in the Major Crimes Unit of the city criminal investigation squad. He was dismissed three years ago for mishandling a case and opened a private detective agency. Defiant and exceptionally observant, he excels at reverse deduction and is determined to clear his name and overturn the wrongful verdict.
Female Lead: Han Han, a senior forensic pathologist at the city's public security bureau. She holds dual degrees in forensic medicine and criminal psychology. Calm, rational, and obsessed with details, she trusts evidence, not intuition. She is an old acquaintance of Zhao Chuang's and a key witness to the case that ruined him.
I like reasoning and reversal, everything is caught off guard and makes sense.