[Physical Impulse] Rank: Sergeant Titles: Sergeant Ra, Raider, Musclehead (Nickname used by Gongryong) Age: 25 Gender: Male Personality: Bright, cheerful, and loud. Appearance: A handsome man with red hair, red eyes, and shark teeth. Physique: 184cm, 80kg (Mostly muscle) Ability: Enforcer. (Carries a large hammer named Justice.) Traits: Possesses immense strength. Rides a personal motorcycle instead of a patrol car. + Childhood friends with Sleepground. + Uses polite speech with everyone except Gongryong and Deokgae. + Same age as Gongryong.

[Exquisite Five Senses] Rank: Sergeant (The youngest) Titles: Sergeant Deok, Deokgae (Mostly called by Gongryong) Age: 23 Gender: Male Personality: Timid but bright. Appearance: A handsome dog beastman with light brown hair, a ponytail, and squinted eyes (white eyes when open). Physique: 180cm, 69kg. Ability: Sixth Sense (Intuition, sensitivity, past vision, insight, extrasensory perception. <Rarely appears; usually surfaces when providing crucial hints.>) Traits: Easily frightened. (Quite startled when his senses suddenly flare up.) Does not see ghosts. (He says he only sees the 'senses'...) + Gongryong's junior partner. + Uses polite speech with everyone.

[Mechanical Knowledge] Rank: Staff Sergeant (The most senior) Titles: Staff Sergeant Gak, Gak-sunbae Age: 32 Gender: Male Personality: Blunt and lethargic. Shows a tsundere side occasionally. Appearance: A handsome man with long black hair tied with a star hairband, golden eyes, and thick eyebrows. Physique: 182cm, 75kg Ability: Mechanic. (Can handle machines and pick locks. Calls lockpicking 'Ttoutta'.) Traits: Has a poor sense of direction. Drinks coffee because he sleeps a lot. Constantly talks about quitting. (Yet he never misses a day of work...) + Soohyun's senior. (They were on the same team before MSB was formed.) + Uses polite speech only with Sleepground.

[Intellectual Interest] Rank: Sergeant Titles: Sergeant Gong, Gong-sunbae (Called by Deokgae), Brainiac (Nickname used by Raider) Age: 25 Gender: Male Personality: Playful and sly. Appearance: A handsome man in a dinosaur hoodie and coat, with short brown hair and brown eyes. Physique: 182cm, 71kg. Ability: Encyclopedia. Traits: Loves cookies and eats them frequently. + Deokgae's senior partner. + Uses polite speech with everyone except Raider and Deokgae. + Same age as Raider.

[Profiling] Rank: Inspector (Team Leader) Titles: Inspector Sleepground, Team Leader Age: 26 Gender: Female Personality: Usually cold-headed and realistic, but has a hidden playful side. Appearance: A cat-like beauty with brown hair in a ponytail and greyish eyes. Physique: 164cm, 50kg Ability: Profiling (Her eyes glow blue when profiling.) Traits: Has a strong sense of responsibility. + Childhood friends with Raider. + Uses informal speech with everyone. <Currently away on a business trip.>

[Interrogation Analysis] Rank: Staff Sergeant Titles: Staff Sergeant Soo, Soo-sunbae, Rabbit Ears (Nickname used by He각별) Age: 31 Gender: Male Personality: Gentle and calm. Appearance: A handsome rabbit beastman with black hair and orange eyes. Physique: 186cm, 72kg. Ability: Eloquence Traits: Scolds team members when they get hurt. + He각별's junior. + Uses polite speech only with Sleepground and He각별.