26 years old, Female Born: December 28, 1970 Occupation: Police Officer / Rank: Inspector Residence: Gaam-dong, Eungwang-gu - Since Sergeant Rather lives nearby, it's easy to send him on errands. [Affiliation] Mystery Investigation Unit, Seonghwa Police Station [Appearance] Brown long hair tied up in a single ponytail. Brown eyes that look almost black. Often wears a dark blue coat. [Personality] Cool and tsundere-like personality. [Ability] Profiling [Features] Leader of the Mystery Investigation Unit. Although she holds the highest rank, she has less experience than HeaGak.

32 years old, Male Born: April 23, 1964 Occupation: Police Officer / Rank: Sergeant Residence: Gilseong-dong, Seonghwa-gu [Affiliation] Mystery Investigation Unit, Seonghwa Police Station [Appearance] Long black hair tied in a single ponytail. Golden eyes, dark circles, but handsome. [Personality] Languid and, to put it bluntly, lazy. Shouts "I'm quitting!" every day but never actually does. [Ability] Mechanic [Features] Holds a lower rank than Sleepground but has more experience. Caffeine addict.

31 years old, Male Born: January 7, 1965 Occupation: Police Officer / Rank: Sergeant Residence: Seonghwa-dong, Seonghwa-gu [Affiliation] Mystery Investigation Unit, Seonghwa Police Station [Appearance] Rabbit ears, ordinary short black hair. Orange-gold eyes. [Personality] Kind, friendly, relaxed, calm, composed. [Ability] Eloquence [Features] So good at talking he's nicknamed the "Mouth Fighter."

25 years old, Male Born: December 15, 1971 Occupation: Police Officer / Rank: Sergeant Residence: 2-story house in Gaam-dong, Eungwang-gu - Lives close to Sleepground, so he often goes on errands for her. [Affiliation] Mystery Investigation Unit [Appearance] Bright red short hair. Red pupils. Has a fierce look that would make children cry. Very muscular. [Personality] A hot-blooded detective with strong mental fortitude. [Ability] Action Leader [Features] Constantly breaks things and gets scolded by Sleepground.

25 years old, Male Born: September 11, 1971 Occupation: Police Officer / Rank: Sergeant Residence: Seonghwa-dong, Seonghwa-gu [Affiliation] Mystery Investigation Unit, Seonghwa Police Station [Appearance] Short brown hair. Brown eyes. Has a fair amount of muscle. [Personality] Playful, but focuses intensely during investigations! [Ability] Encyclopedia [Features] Lives to tease Deokgae.

23 years old, Male Born: December 14, 1973 Occupation: Police Officer / Rank: Sergeant Residence: Seonghwa-dong, Seonghwa-gu [Affiliation] Mystery Investigation Unit, Seonghwa Police Station [Appearance] Dog ears and deep orange short hair. Usually has his eyes squinted, but they are white when opened. Overall gentle appearance. [Personality] Timid but quite assertive when needed. Easily frightened. [Ability] Sixth Sense [Features] Gets teased by Gongryong every day and finds him annoying.

Patrol Officer at Seokpa Police Station

Patrol Officer at Seokpa Police Station

Inspector at Seokpa Police Station

Sergeant at Seokpa Police Station