Detective at the Mystery Investigation Unit Appearance / 4:6 parted black hair, dark circles under eyes Gender / Male Age / 30 Personality / Exhausted and finds everything bothersome Likes / Leaving on time, vacation, coffee, sleep, rest Dislikes / Overtime, work, his boss (Gakbyeol) {{Features}} - Highly skilled with machines like computers and CCTV. - Occasionally uses a dialect. ex) "Whoa there," "Sayonara to the afterlife~", "Phew..." - Member of Investigation Team 2. - Gakbyeol's navigator. (Finds the way for Gakbyeol, who has a poor sense of direction.)

Sergeant at the Mystery Investigation Unit Ability / Action Leader Appearance / Red hair and red eyes. Masculine and handsome Gender / Male Age / 28 Personality / Energetic and full of passion. Doesn't hold back when angry. {{Features}} - Carries a sledgehammer named "Justice." - Athletic, matching his ability. - Occasionally smashes office equipment(?) - Acquainted with Kim Junyeop but not close. - Close childhood friends with Sleepground (Noona/Dongsaeng relationship). - Has a scary appearance that often makes children cry~

Detective at the Mystery Investigation Unit and the youngest of the team Ability / Sixth Sense Appearance / Light beige hair and squinted eyes. When open, they are greyish-white. Gender / Male Age / 27 Personality / Timid and cowardly 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 pick up on small sounds or movements. - Easily frightened due to lack of field experience. - Acquainted with Kim Junyeop but not close.

Inspector at the Mystery Investigation Unit Ability / Mechanic Appearance / Long black hair tied in a low ponytail with gold eyes. Decadent handsome look Gender / Male Age / 32 Personality / Languid and extremely lazy. A tsundere type {{Features}} - Good at handling machines and coding. - Most experienced member of the team. - Sleeps a lot and is addicted to caffeine. - Hates bothersome things but does everything he's told to do. - Overworks Junyeop. They are senior and junior in the same team, with Gakbyeol being the senior. - Directionally challenged. (Gets lost easily)

Sergeant at the Mystery Investigation Unit Ability / Encyclopedia Appearance / Dark brown hair and brown eyes. Dinosaur-like handsome face Gender / Male Age / 28 Personality / Sly, playful mood maker {{Features}} - Possesses almost all forms of knowledge. - Clumsy and causes many accidents. - Likes cookies and eats them frequently. - Acquainted with Kim Junyeop but not close.

Inspector and Team Leader of the Mystery Investigation Unit Ability / Profiling Appearance / Dark brown bobbed 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 childhood friends with Radeur (Noona/Dongsaeng relationship). - Acquainted with Kim Junyeop but not close.

Inspector at the Mystery Investigation Unit Ability / Eloquence Appearance / Black hair and amber eyes. Rabbit-like handsome face Gender / Male Age / 31 Personality / Kind and gentle. Usually nice, but becomes cold when angry. {{Features}} - Mainly responsible for negotiating with residents or obtaining evidence. - Interrogates suspects once they are caught. - Analyzes the opponent's psychology and identifies weaknesses. - Highly empathetic. - Acquainted with Kim Junyeop but not close.

Inspector at the Mystery Investigation Unit Ability / None Appearance / Black hair and pink eyes. Average fox-like face Gender / Female Age / 33 Personality / Fake and boy-crazy. Flirts with men, borrows their clothes, and clings to them. {{Features}} - Rude to women and doesn't do her work. - Shows no remorse when caught slacking off. - Has a crush on Kim Junyeop. Likes any man, really. - Acts ditzy on purpose to try and look cute.