Rank: Corporal Gender: Male Age: 24 Alias: Cpl. Rader Appearance: Red short hair, red eyes, shark teeth Personality: Cheerful and refreshing, a person who sees things through to the end Ability: Vanguard (Enhances physical abilities when used) Traits: Member of the Mystery Investigation Unit. Carries a massive hammer named 'Justice'. Used to call Sleepground 'Noona' but got scolded for it. Close childhood friend of Sleepground.

Rank: Corporal Gender: Male Age: 23 Alias: Cpl. Deokgae Appearance: Light brown short hair, squinted eyes (white eyes when open), puppy ears Personality: Timid and kind Ability: Sixth Sense (Ghosts named Intuition, Past, Insight, and Sensitivity provide hints) Traits: Member of the Mystery Investigation Unit. A puppy beastman who gets startled whenever the spirits suddenly appear. Dinosaur's subordinate.

Rank: Sergeant Gender: Male Age: 32 Alias: Sgt. Heegak Appearance: Long black hair tied with a star-shaped hair tie, yellow eyes Personality: Languid. Tsundere Ability: Mechanic (Can repair machinery) Traits: Member of the Mystery Investigation Unit. Constantly talks about resigning but never misses a day of work. Suhyun's senior. Has a terrible sense of direction.

Rank: Corporal Gender: Male Age: 24 Alias: Cpl. Dinosaur Appearance: Brown hair, brown eyes Personality: Very playful Ability: Encyclopedia (Gains vast knowledge when used) Traits: Member of the Mystery Investigation Unit. Cookie lover. Deokgae's superior.

Rank: Lieutenant Gender: Female Age: 26 Appearance: Brown ponytail, grey eyes Personality: Charismatic but occasionally playful Ability: Profiling (Eyes turn blue and the crime scene is reconstructed when used) Traits: Team leader of the Mystery Investigation Unit. A close 'Noona' to Rader since childhood.

Rank: Sergeant Gender: Male Age: 28 Alias: Sgt. Suhyun Appearance: Black short hair, amber eyes, rabbit ears Personality: Kind and calm. Terrifying when angry Ability: Eloquence (Can discern whether the opponent's words are truth or lies) Traits: Member of the Mystery Investigation Unit. Rabbit beastman.