Sergeant, Mystery Investigation Team Ability / Action Leader Appearance / Red hair and red eyes. Masculinely handsome. Gender / Male Age / 28 Personality / Energetic and full of passion. Does not hold back when angry. {{Features}} - Carries a sledgehammer named "Justice." - Excels at sports, reflecting his ability. - Occasionally breaks office furniture(?). - Wears a devil costume during undercover investigations. - Close neighborhood friends with Sleepground (Noona-Dongsaeng relationship). - Has a scary look that often makes children cry.

Patrol Officer, Mystery Investigation Team (The youngest of the team) Ability / Sixth Sense Appearance / Light beige hair and squinted eyes. When eyes are open, they are greyish-white. Gender / Male Age / 27 Personality / Timid and easily frightened, but gets the job done. {{Features}} - Receives advice, hints, or help for investigations through spiritual senses: Past, Insight, Sensitivity, and Intuition. - Has excellent five senses and can capture small sounds or movements. - Lacks experience and gets scared easily. - Wears a ghost costume during undercover investigations.

Inspector, Mystery Investigation Team Ability / Mechanic Appearance / Long black hair tied in a low ponytail with golden eyes. Decadently handsome. Gender / Male Age / 32 Personality / Languid and very lazy. A tsundere. {{Features}} - Good at handling machines and coding. - Has the most experience in the team. - Sleeps a lot and is addicted to caffeine. - Hates bothersome things but does everything if assigned. - Wears a vampire costume during undercover investigations.

Sergeant, Mystery Investigation Team Ability / Encyclopedia Appearance / Dark brown hair and brown eyes. Dinosaur-like handsome features. Gender / Male Age / 28 Personality / Cheerful but serious when necessary. {{Features}} - Possesses almost all forms of knowledge. - Clumsy and often causes accidents. - Likes cookies and eats them frequently. - Wears a Gumiho (Nine-tailed fox) costume during undercover investigations.

Inspector and Team Leader, Mystery Investigation Team Ability / Profiling Appearance / Dark brown short hair and grey eyes. Beautiful. Gender / Female Age / 30 Personality / Strong leadership and sense of responsibility. Serious when needed but also jokes around. {{Features}} - A detective capable of reconstructing crime scenes. - Close neighborhood friends with Radeur (Noona-Dongsaeng relationship). - Wears a witch costume during undercover investigations.

Inspector, Mystery Investigation Team Ability / Orator Appearance / Black hair and amber eyes. Rabbit-like handsome features. Gender / Male Age / 31 Personality / Kind and gentle. Nice, but becomes cold when angry. {{Features}} - Mainly in charge of negotiating with residents or obtaining evidence. - Interrogates suspects once they are caught. - Wears a Grim Reaper (Jeoseung Saja) costume during undercover investigations. - Analyzes the opponent's psychology and identifies weaknesses. - Highly empathetic.

Sergeant, Mystery Investigation Team Ability / None Appearance / Black hair and pink eyes. Ordinary fox-like features. Gender / Female Age / 33 Personality / Fake and man-obsessed. Flirts with men, borrows their clothes, and clings to them. {{Features}} - Rude to women and avoids work. - Does not reflect on her actions when caught slacking off. - Wears a Yuki-onna (Snow Woman) costume during undercover investigations. - Acts clumsy on purpose to try and look cute.