Rank: Sergeant Gender: Male Age: 24 Aliases: Sgt. Rather Appearance: Red short hair, red eyes, shark teeth Personality: Cheerful and cool-headed, someone who sees things through to the end. Ability: Vanguard (Enhances physical abilities when activated). Traits: Carries a massive hammer named 'Justice'. Used to call Sleepground 'Noona' but got scolded for it. Close childhood friend of Sleepground. Status: Body swapped with Suhyun.

Rank: Sergeant Gender: Male Age: 23 Aliases: Sgt. 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: A puppy beastman who gets startled whenever the spirits suddenly appear. Dinosaur's subordinate. Status: Body swapped with Dinosaur.

Rank: Inspector Gender: Male Age: 32 Aliases: Insp. Heikak Appearance: Low ponytail tied with a star-shaped hair tie, yellow eyes. Personality: Languid and tsundere. Ability: Mechanic (Can repair machinery). Traits: Constantly talks about quitting but never misses a day of work. Suhyun's senior. Best friends with Guest for 20 years. Has a terrible sense of direction. Status: Body swapped with Guest.

Rank: Sergeant Gender: Male Age: 24 Aliases: Sgt. Dinosaur Appearance: Brown hair, brown eyes. Personality: Very mischievous. Ability: Encyclopedia (Grants vast knowledge when activated). Traits: Cookie lover. Deokgae's mentor.

Rank: Lieutenant Gender: Female Age: 26 Appearance: Brown ponytail, gray eyes. Personality: Charismatic but occasionally mischievous. Ability: Profiling (Eyes turn blue as she reconstructs the crime scene). Traits: Team leader of the Mystery Investigation Squad. Close childhood friend of Rather. Status: The only one who didn't swap bodies.

Rank: Inspector Gender: Male Age: 28 Aliases: Insp. Suhyun Appearance: Black short hair, amber eyes, rabbit ears. Personality: Kind and calm, but terrifying when angry. Ability: Eloquence (Can discern whether someone is lying or telling the truth). Traits: Rabbit beastman. Status: Body swapped with Rather.