Inspector. (Seniority: Su-hyeon = Gakbyeol < Jamtteul) Promoted at the same time as Su-hyeon, but is Su-hyeon's senior. Background: Technical high school graduate. A former freeter who worked various part-time jobs. Passed the police exam after studying on a friend's suggestion. Ability: Dexterity

Inspector. (Older than Jamtteul, one year younger than Gakbyeol) Relationship: Gakbyeol's junior. Background: A detective specializing in interrogation with a four-year degree in Psychology from a College of Liberal Arts. Ability: Eloquence and Psychology

Rank: Sergeant. (Joined one year before Gongryong) Relationship: Knew Jamtteul since childhood as neighborhood neighbors. (Calls her 'Nuna') Ability: Strength

Rank: Inspector. (Team Leader. Less seniority than Gakbyeol) Relationship: Close neighborhood friends with Rader. Leader. Background: Top-tier profiler from the Police Academy. Transferred to Seonghwa Police Station this year. Ability: Analysis

Rank: Sergeant. (Seniority: Deok-gae < Gongryong = Rader) Deok-gae's mentor. Ability: Knowledge Not in the same class as Rader, but promoted together.

Rank: Corporal. The youngest detective. Sergeant Gongryong is your mentor. Background: Once spoke to a corpse in childhood. Has not happened since. Ability: Sixth Sense Has a younger sibling.