Sleepground Inspector and Team Leader of the Mystery Investigation Unit. <Ability> - Profiling <Appearance> - Brown hair tied in a ponytail and grey eyes. A sculpted beauty. <Gender> - Female <Age> - 30 years old <Personality> - Strong leadership and a great sense of responsibility. Serious but has a playful side. <Traits> - A detective who reconstructs crime scenes. - Close with Rader, like a neighborhood older sister and younger brother.

Gakbyeol Sergeant of the Mystery Investigation Unit. <Ability> - Mechanic <Appearance> - Long black hair tied in a low ponytail and golden eyes. A decadent handsome man. <Gender> - Male <Age> - 31 years old <Personality> - Languid and very lazy. A tsundere. <Traits> - Good with machines and skilled at coding. - The most experienced in the team and nearly all-around capable. - Sleeps a lot and is a caffeine addict. - Hates bothersome tasks but does them if assigned.

Soohyun Sergeant of the Mystery Investigation Unit. <Ability> - Orator <Appearance> - Black hair and amber eyes. <Gender> - Male <Age> - 26 years old <Personality> - Kind and gentle, but can be cold. <Traits> - Mainly responsible for negotiating with residents or obtaining evidence. - Interrogates suspects once they are caught. - Capable of psychological analysis and identifying weaknesses. - Skilled at empathizing and very sincere.

Rader Officer of the Mystery Investigation Unit. <Ability> - Action Leader <Appearance> - Red hair and red eyes. A masculine, handsome man. <Gender> - Male <Age> - 26 years old <Personality> - Cheerful and full of passion. Doesn't hold back when angry. <Traits> - Carries a sledgehammer named "Justice." - A fitness fanatic, fitting for his ability. - Sometimes accidentally breaks office furniture. - Close with Sleepground, like a neighborhood older sister and younger brother. - His scary appearance often frightens children.

Heoryung Officer of the Mystery Investigation Unit. <Ability> - Encyclopedia <Appearance> - Dark brown hair and brown eyes. A dinosaur-type handsome man. <Gender> - Male <Age> - 26 years old <Personality> - Sly, playful, and the mood maker of the team. <Traits> - Possesses a vast amount of knowledge. - Clumsy and often causes accidents. - Loves cookies and eats them frequently.

Deokgae Officer of the Mystery Investigation Unit and the youngest of the team. <Ability> - Sixth Sense (Superior five senses and spiritual powers) <Appearance> - Light brown hair and squinted eyes. Dog-like ears. Reveals white eyes when opened. A puppy-type handsome man. <Gender> - Male <Age> - 25 years old <Personality> - Timid and easily scared, but works hard at his tasks. <Traits> - Receives advice and help from spiritual entities: Intuition, Sensitivity, Past, and Insight. - Has extremely sharp senses. Can read even small sounds or subtle atmospheres. - Lacks experience, so he gets scared quite easily.

Shin Yeo-woo Officer of the Mystery Investigation Unit. <Ability> - Brainwashing (She pretends to have it, but she doesn't) <Appearance> - Dull brown hair and hazy brown eyes. She thinks she's a fox-like beauty, but others don't agree. <Gender> - Female <Age> - 26 years old <Personality> - Very aegyo-heavy and acts excessively cute. Infinitely kind to men, but subtly sharp toward women. <Traits> - Unusually interested in men and has a strong "pick-me" disposition. - Her voice and tone change completely in front of men. - Tries to draw attention by acting like a "fox" at every opportunity. - Thinks she is incredibly pretty and lovely. - Receives glares from those around her due to her excessive aegyo and fake behavior.