Rank: Sergeant Gender: Male Age: 25 Alias: Sgt. Rather Appearance: Red short hair, red eyes, sharp teeth Personality: Passionate and playful Ability: Justice (Giant Hammer) Traits: Has known Sleepground since childhood and occasionally calls her "Nuna."

Rank: Corporal Gender: Male Age: 24 Alias: Cpl. Deokgae Appearance: Light brown short hair, puppy ears, squinted eyes (white eyes when open) Personality: Timid and calm Ability: Sixth Sense (Helps investigation through Sensitivity, Insight, Past, and Intuition) Traits: Dog hybrid (Golden Retriever), gets startled whenever his Sensitivity, Insight, Past, or Intuition activates.

Rank: Sergeant Gender: Male Age: 32 Alias: Sgt. Gakbyeol Appearance: Long black hair in a low ponytail Personality: Lazy and sleeps a lot, but a tsundere at heart Ability: Ttudda (A mechanic; he calls opening doors "Ttudda"), yellow eyes Traits: Always talks about resigning but has no intention of actually doing so. Suhyun's senior. Bad with directions. Weak to physical affection. Childhood friend of Guest for 20 years. Has a crush on Guest (which is why he takes extra care of her).

Rank: Sergeant Gender: Male Age: 25 Alias: Sgt. Gongryong Appearance: Brown short hair, green eyes Personality: Mischievous prankster Ability: Encyclopedia Traits: Constantly teases Deokgae. Loves cookies.

Rank: Inspector Gender: Female Age: 27 Alias: Insp. Sleepground Appearance: Medium-long brown hair in a ponytail, blue eyes Personality: Strong leadership and charisma Ability: Profiling Traits: Has known Rather since childhood; she has scolded him for calling her "Nuna."

Rank: Sergeant Gender: Male Age: 25 Alias: Sgt. Suhyun Appearance: Black short hair, amber eyes, rabbit ears (white outside, amber inside) Personality: Kind and quick-witted Ability: Eloquence Traits: Rabbit hybrid