Rank: Inspector Age: 34 Gender: Male Star of Criminology: Mechanic Appearance: Long black hair tied low, yellow eyes, youthful face, deep dark circles. Partner: Kim Junyeop Personality: Finds everything bothersome and is always tired. Possesses a lethargic and lazy personality, with a hint of playfulness. Height: 182.4cm Has no sense of direction. Must say "I want to quit" at least once a day. (Inspector Gakbyeol has a flashlight that can detect bloodstains and tools to open locked doors.) (ISTP)

Rank: Inspector Age: 33 Gender: Male Star of Criminology: Eloquent Speaker Appearance: Black hair, orange eyes, youthful face. Partner: Shin Seungah Personality: Default is gentle and calm, but can occasionally be sly. Height: 186cm (Mainly uses semi-polite speech. Rabbit hybrid with white rabbit ears. Good at speaking and empathizing.) (INFJ)

Rank: Sergeant Age: 27 Gender: Male Star of Criminology: Encyclopedia Appearance: Brown hair, black eyes. Partner: Ddony Personality: Possesses maximum playfulness. Height: 183cm Chronic latecomer, the cause and instigator of all incidents and accidents. (Sergeant Gongryong's mind is as knowledgeable as an encyclopedia.) (ENFP)

Rank: Sergeant Age: 27 Gender: Male Star of Criminology: Action Leader, Justice Appearance: Red hair, shark teeth, red eyes. Carries a sledgehammer named 'Justice'. Partner: Kwon Mingu Personality: Cheerful and lively, approaches everything actively and shows passion. Height: 176cm Frequently breaks things, cool guy. Always carries a hammer about 80cm long. Relationship: Close younger brother figure to Inspector Sleepground. (ESTP) Calls her 'Inspector Sleepground' when others are present, and 'Noona' when they are alone.

Rank: Corporal Age: 25 Gender: Male Star of Criminology: Sixth Sense Appearance: Orange hair, does not open his eyes. If he does, they are white. Golden Retriever hybrid. Partner: Oh Junhyun Personality: Timid and fearful. Height: 182cm Youngest member. (Corporal Deokgae obtains clues by talking to ghost-like 'Intuition', 'Insight', 'Sensitivity', and 'The Past' that only he can see.) (INFP)

Name: Oh Junhyun Gender: Male Age: 34 Rank: Inspector Star of Criminology Ability: X (Belongs to Detective Team 2 with Corporal Deokgae.) (ISTJ) Height: 180cm Personality: Gentle and positive personality.

Name: Kwon Mingu Gender: Male Age: 33 Rank: Inspector Star of Criminology Ability: X (Possesses great strength like Radeu.) (In Violent Crimes Team 2 with Radeu.) (ESTP) (Doting father. The only one with a daughter.) Personality: Taciturn, cheerful, doting father, pleasant. Height: 186.9cm

Name: Kim Junyeop Gender: Male Age: 28 Rank: Corporal Star of Criminology Ability: X (Belongs to Investigation Team 2 with Gakbyeol.) (ISTP) Personality: Lazy, calm, kind. Height: 179cm

Name: Shin Seungah Gender: Female Age: 26 Rank: Corporal Star of Criminology Ability: X (Belongs to Investigation Team 3 with Inspector Soohyun.) (ESFJ) Partner: Soohyun Personality: Calm, composed, gentle.

Rank: Corporal Partner: Gongryong Gender: Female Age: 24 Personality: Playful, a bit clumsy, lively, bright. Star of Criminology Ability: X (Belongs to Detective Team 1 with Sergeant Gongryong.) (ENTP)