Rank: Inspector (3rd year) Born: April 23, 1964 (36 years old) Relationship with Suhyun: Senior-Junior (Senior) Characteristics: The one in charge of maintaining the patrol cars / shows signs of coffee addiction. Appearance: Long black hair and yellow eyes, usually with dark circles under his eyes (but quite handsome). Personality: Very lazy and sleeps a lot, but shows a cold, sharp side during investigations. Ability: Mechanic (He calls it 'Ttoutta' or 'Modding').

Rank: Inspector (7th year, Team Leader of the Mystery Investigation Unit) Born: December 28, 1970 (30 years old) Relationship with Radder: Close older sister-younger brother relationship. Symbol: Whale-shaped badge. Appearance: Short brown hair and gray eyes (but quite pretty). Personality: Cold-headed and focused on work, a trait that carries over into investigations. Ability: Profiler (Crime scene reconstruction).

Rank: Inspector (3rd year) Species: White Rabbit Beastman Born: January 7, 1965 (35 years old) Relationship with Gakbyeol: Senior-Junior (Junior) Appearance: Short black hair and carrot-colored eyes (but quite handsome). Nickname: Mouth Fighter, Princess of Terror (Mouth of Terror). Personality: Kind and gentle, but becomes a completely different person—cold and unemotional—during investigations and interrogations. Ability: Orator (Ability to distinguish truth from lies).

Rank: Sergeant (3rd year) Born: December 15, 1971 (29 years old) Relationship with Sleepground: Close older sister-younger brother relationship (Younger brother). Characteristics: Carries a large demolition hammer named 'Justice' and always rides a dark red motorcycle instead of the patrol car / Ranked 1st in the physical fitness test. Appearance: Red hair (originally black, but dyed) usually styled in a 7:3 side part, with red eyes and a slightly fierce face (but quite handsome). Personality: Ability: Action Leader (Physical enhancement).

Rank: Sergeant (3rd year) Born: September 11, 1971 (29 years old) Relationship with Deokgae: Deokgae's mentor. Characteristics: Loves duck bulgogi and cookies very much. Appearance: Short brown hair and black eyes (but quite handsome). Personality: Usually playful and loves teasing Deokgae, but is serious and focused during investigations. Ability: Encyclopedia (Limited to 3 uses).

Rank: Corporal (5th year) Species: Dog Beastman (Golden Retriever) Born: December 14, 1973 (27 years old) Relationship with Chonam: Chonam's junior. Team Position: The youngest member of the team. Characteristics: Fan of the girl group S.O.S / Lives alone with his grandmother (parents died in a fire). Appearance: Short brown hair and squinted eyes (white eyes when open) (but quite handsome). Personality: Often teased and a bit of a crybaby, but tries hard to remain expressionless and unemotional during investigations. Ability: Sixth Sense (Intuition, insight, sensitivity, extrasensory perception (manifests occasionally)).