Hair/Eyes: Long brown hair / Greyish eyes mixed with blue -- Outfit: Black jacket + Sky blue shirt + Grey pants + Brown belt + Black boots -- Rank: Inspector (7th year) -- Ability: Profiling — The ability to analyze crime scenes and reconstruct the situation at the time. -- Female -- Team Leader of the Mystery Investigation Unit at Seonghwa Police Station. -- Close like siblings with Rather (Sleepground is the older sister figure) - Not biological family, but like real siblings. - However, whenever Rather tries to call her 'Noona', she tells him to call her 'Inspector'. - Personality: Playful yet charismatic when working (Leader). -- Likes: Solving cases, team members (as colleagues) Dislikes: Criminals, overtime

Hair/Eyes: Vivid red short hair / Red eyes -- Outfit: Red jacket + Black top + Grey pants + Black boots -- Rank: Sergeant -- Ability: Action Leader — The ability to excel in the field based on outstanding stamina and physical prowess. -- Male -- Member of the Mystery Investigation Unit at Seonghwa Police Station -- Close like siblings with Sleepground (Rather is the younger brother figure) - Not biological family, but like real siblings. -- Carries a sledgehammer named "Justice". -- Personality: Energetic, passionate - In short, has high passion for investigation and high tension. -- Likes: Justice (his sledgehammer), team members (colleagues) Dislikes: Criminals, overtime

Hair/Eyes: Soft light brown short hair / Brown eyes (eyes are usually closed) -- Outfit: Dark green jacket, white shirt, long green and white boots, dark blue pants -- Rank: Detective -- Ability: Sixth Sense — An extraordinary sensing ability beyond normal senses, quickly noticing strange energies or danger factors nearby. -- Male -- Member of the Mystery Investigation Unit at Seonghwa Police Station -- Coa's junior -- Likes: Cookies?, team members (colleagues) Dislikes: When Coa teases him, overtime -- Personality: Fearful and timid. -- Sixth Sense Past Insight Sensitivity Five Senses Extrasensory Perception Intuition (Visible only to Deokgae)

Hair/Eyes: Brown short hair / Brown eyes -- Outfit: Hat with black dinosaur decoration + Green jacket + White top + Dark pants + White sneakers -- Rank: Sergeant -- Ability: Encyclopedia — Possesses broad knowledge in various fields and has the ability to recall necessary information for investigations. -- Male -- Likes: Cookies, teasing Deokgae, team members (colleagues) Dislikes: Overtime, criminals -- Member of the Mystery Investigation Unit at Seonghwa Police Station -- Deokgae's mentor -- Eats cookies frequently

Hair/Eyes: Black hair with a purple tint / Orange eyes -- Outfit: Purple jacket + White shirt + Light purple knit + Black pants, Rabbit hybrid -- Rank: Inspector -- Ability: Eloquence — The ability to grasp the opponent's psychology and emotions through conversation and interrogation, and analyze statements. -- Male -- Member of the Mystery Investigation Unit at Seonghwa Police Station -- He각별's junior -- Kind and smiles often. -- Likes: Team members (colleagues) Dislikes: Overtime, criminals

Hair/Eyes: Spiky black hair / Golden eyes -- Outfit: Brown jacket + White shirt + Yellow tie + Black pants, long braided hair -- Rank: Inspector -- Ability: Mechanic — Specializes in handling machines and circuits, and disabling locking devices -- Male -- Member of the Mystery Investigation Unit at Seonghwa Police Station -- Soohyun's senior -- Dislikes: Overtime, bothersome things, criminals Likes: Coffee, resting, team members (colleagues) -- Personality: Participates in investigations because he has to, but often finds things troublesome and frequently uses the phrase "I'm quitting..."

Dreamcore/Weirdcore Original Character -- Long black hair, greyish and red eyes, black eyes. -- Coat-style outfit mixed with red, red decorations and memo paper decorations. Dark red ghost-like floaties hover around. Dark and bizarre dream-like atmosphere. -- Agender