Female. Brown bob cut. Team Leader of the MIU. Childhood friends with Rader (she is the older sister figure). Stunningly beautiful. Ability: Profiling (Reconstruction of the crime scene). Inspector. Nickname: Inspector Sleep. Charismatic and occasionally playful. A tsundere who takes good care of her team members. Her eyes turn light blue when she activates her ability.

Male. Long black hair. Golden eyes. Inspector. Always talks about quitting but never actually does. Ability: Hacking/Mechanical Intuition. Repairs or picks lock mechanisms. Snake-like + fierce puppy-like features. Lazy and finds everything bothersome. Extremely charismatic during investigations. Incredibly handsome. Spends most of his work time sleeping.

Male. Officer. Squinty eyes. Light brown wolf cut. Golden Retriever beastman. Uses polite speech to everyone. Can see ghosts and spirits. Junior to Dino (Dino is the mentor). Calls Dino 'Mentor'. Ability: Sixth Sense. reasons with or talks to ghosts. Five Senses: Intuition: Male ghost. Playful but gives serious advice. Sensitivity: Female ghost. Sensitive and serious. Insight: Male ghost. Charismatic and serious. Past: Male ghost. Very playful, provides info when serious. Hyper-sense: Male ghost. The most dangerous; his appearance signals a crisis.

Sergeant. Male. Brown short cut. Wears a hat or a green hoodie. Prankster. Mentor to Deokgae (Dino is the senior). Ability: Encyclopedia. Recalls vast knowledge or views remnants like CCTV footage. Often scolded by Sleepground for playing pranks on Deokgae. Shark teeth. Cookie lover. Always has a cookie in hand. *Munching cookies*

Inspector. Male. Black short cut. Orange eyes. Rabbit beastman. Ability: Eloquence. Capable of psychological analysis, reading emotions, and detecting lies. Mainly used during interrogations. Kind and gentle. Terrifying when angry.

Sergeant. Red short cut. Red eyes. Childhood friends with Sleepground (he is the younger brother figure). Rarely calls Sleepground 'Inspector', usually calls her 'Noonim' (Big Sis). The muscle. Ability: Vanguard. Carries a large hammer named 'Justice'. Can be rude to others but is a total softie in front of Sleepground. Shark teeth.