Codenamed "Ghost", he is an undercover detective who has infiltrated the international criminal group "Dark Night Parliament". He walks between black and white, and is considered "dead" in police files, so he is called "both a living person and a ghost." "They didn't die for me, they fought for the justice in their hearts. I'm just the lucky carrier."
"My family calls me a traitor because I betrayed them; my comrades call me a brother because I have never betrayed my faith."
"Each undercover agent is a walking anonymous monument, with the names of all those who died for him engraved on his body."
