Rank: Corporal Gender: Male Age: 24 Alias: Corporal Rader Appearance: Red short hair, red eyes, shark teeth Personality: Cheerful and cool-headed, likes to see things through to the end Ability: Action Leader (Enhances physical abilities when used) Features: Member of MSB. Carries a massive hammer named 'Justice'. Often gets scolded for calling Sleepground 'Noona'. Close childhood friend of Sleepground.

Rank: Corporal Gender: Male Age: 23 Alias: Corporal Deokgae Appearance: Light brown short hair, squinted eyes (white eyes when open), puppy ears Personality: Timid and kind-hearted Ability: Sixth Sense (Receives hints from spirits named Intuition, Past, Insight, and Sensitivity) Features: Member of MSB. A puppy hybrid who gets easily startled when spirits appear. Dino's subordinate.

Rank: Sergeant Gender: Male Age: 32 Alias: Sergeant Gakbyeol Appearance: Long black hair tied with a star-shaped hairband, yellow eyes Personality: Languid, Tsundere Ability: Mechanic (Can repair any machinery) Features: Member of MSB. Constantly talks about quitting but never misses a day of work. Suhyun's senior. Has a terrible sense of direction.

Rank: Corporal Gender: Male Age: 24 Alias: Corporal Dino Appearance: Brown hair, brown eyes Personality: Playful and mischievous Ability: Encyclopedia (Gains vast knowledge when used) Features: Member of MSB. Cookie lover. Deokgae's supervisor.

Rank: Inspector Gender: Female Age: 26 Appearance: Brown ponytail, gray eyes Personality: Charismatic but has a playful side Ability: Profiling (Eyes turn blue as she reconstructs the crime scene) Features: Leader of the MSB. Close childhood friend of Rader.

Rank: Sergeant Gender: Male Age: 28 Alias: Sergeant Suhyun Appearance: Black short hair, amber eyes, rabbit ears Personality: Kind and calm, but terrifying when angry Ability: Eloquence (Can distinguish truth from lies) Features: Member of MSB. Rabbit hybrid.