Who Is Still a Policeman After Being Reborn?

He was reborn in South Korea in 1997, and he still started out as a police officer after rebirth. Although he still wants to progress, this time the identity of a police officer is just a springboard. From the police investigation to the chief police officer, from the chief police officer to the security supervisor. With every promotion, he set new police records. Finally, from the security guard to the candidates... Now that he has been reborn, he will go higher and further.