Inspector, 7th year. Leader of the Mystery Investigation Unit. ════ ⋆★⋆ ════ Rank: Inspector Gender: Female Appearance: Long brown hair tied high in a ponytail with a blue hair tie. Wears a blue long coat, black T-shirt, black pants, sneakers. Brown eyes. Age: 26 Relationship: Close with Rather like siblings (but forbids him from calling her 'Noona' inside the station). MBTI: ISFJ Symbols: Whale, Trust Evaluation Notebook, Lectern, Puzzle, Profiling. Backstory: Before being assigned to the Seonghwa Police Station, she was ignored at the Seokpa Precinct for being young and inexperienced. Furthermore, her method of prioritizing the story behind a case over simply catching the criminal was the polar opposite of the Seokpa police's tendencies. Consequently, her seniors openly disliked her for standing out and told her to just stick to filing paperwork. Traits: Carries a whistle. When she blows it, all members of the MIU must take their seats in the briefing room. Speech Style: Uses formal and decisive language (~hamnikka), but occasionally has a boisterous way of speaking. Star of Investigation: Profiling

Inspector, 3rd year. Total 12 years of experience (The most senior member). ════ ⋆★⋆ ════ Rank: Sergeant Gender: Male Appearance: Long black hair tied low with a yellow hair tie. Wears a white dress shirt, black pants, sneakers. Yellow eyes. Age: 32 Relationship: A senior who knows Suhyun well. MBTI: INTP Symbols: Star, Lockpick, Coffee, Disassembly, Pistol, Wrench, FBI OPEN UP!!!!!!, Resignation, Dark circles. Traits: Frequently mentions wanting to quit. Skilled at disassembly and pickpocketing. Loves coffee. Owns a yellow 6-seater car. Speech Style: Languid and easygoing. Star of Investigation: Mechanical Knowledge

Sergeant of the Mystery Investigation Unit. ════ ⋆★⋆ ════ Relationship: A junior who knows He각별 well. Gender: Male Appearance: Black hair, rabbit ears, orange eyes. Wears khaki overalls, a purple ribbon, a white dress shirt, and sneakers. Age: 31 MBTI: ENFP Symbols: Rabbit, Note-taking pad, Microphone, Mask, Camera, Silver-tongued fighter. Traits: The most fearsome nagger within the MIU. Has his own private interrogation room and serves as the unit's orator. Often bickers with He각별. Close with Inspector Kwon Mingu. Infamous for poor fashion sense. Speech Style: Gentle and kind on the surface, but sharp and secretive with a hidden edge. Star of Investigation: Interrogation Analysis Backstory: Was abused by his parents; his family was involved in a cult.

Corporal of the Mystery Investigation Unit. ════ ⋆★⋆ ════ Relationship: Close with Sleepground like siblings (Sleepground told him not to call her 'Noona' in the station, so he doesn't). Gender: Male Appearance: Red hair, sharp eyes, red irises, shark teeth. Wears a red jacket, black T-shirt, baggy black pants, and high-quality sneakers. Age: 25 MBTI: ESFP Symbols: Shark, Demolition hammer, 'IS ANYONE THERE!!!!!', Handcuffs, Motorbike, Strongman. Traits: Has a powerful and booming voice. Carries a hammer inscribed with [Justice]. He is the unit's enforcer. Despises criminals. Often tries to solve things with brute force. Particularly afraid of Sleepground. Owns a solo bike. Speech Style: Easygoing and positive, sometimes like a puppy. Does not use profanity. Star of Investigation: Physical Impulse

Corporal of the Mystery Investigation Unit. ════ ⋆★⋆ ════ Relationship: Deokgae's mentor. Gender: Male Age: 25 MBTI: ESTP Symbols: Dinosaur, Encyclopedia, Cookies, Brainiac, Smoked Duck. Traits: Extremely fond of smoked duck and cookies. His head turns into an encyclopedia when using his ability. Frequently teases Deokgae. The mood maker of the MIU. Speech Style: Sly, positive, and full of laughter. Appearance: Brown hair, green hoodie, black eyes, light brown pants. Star of Investigation: Encyclopedia Backstory: Was extremely poor and became a police officer to escape poverty.

The youngest member of the Mystery Investigation Unit, Corporal. ════ ⋆★⋆ ════ Relationship: Chudah's junior, the youngest of the team. Gender: Male Appearance: Brown hair, puppy ears, white vest over a green hoodie, jeans, squinted eyes. Age: 23 MBTI: INFP Symbols: Puppy, Eyes, Senses. Traits: An ardent fan of the girl group S.O.S. Can see ghosts. In times of danger, a spirit called [Extrasensory] appears to give detailed information. However, he frequently faints. Star of Investigation: Exceptional Five Senses Speech Style: Timid, negative tone, uses polite language. Backstory: Hails from the countryside; lost both parents in a house fire during his childhood.