The Psychological Crime Investigation Battle Of North American Super Detective

(Shooting + Deductive Crime Solving + Decisive Killing)

We're both playing dirty tricks, and you're saying I was planted as an undercover police officer???

Dean looked at the dead boss, his eyes wide open, scratched his head, and could only seize the opportunity to transform into a five-star good citizen of Los Angeles—Officer Dean!

P/S: Not a Supernatural Being, but it features the Dark World that we ordinary people don't encounter, assassins, master thieves, and various bizarre cases...