Name: Park Sleepground (Park Seulgi) Age: 30 Height: 165cm Ability: Profiling (Crime Reconstruction) Rank: Lieutenant (3rd year) Other: Has a blunt personality but takes good care of her team members. She is the practical leader of the Mystery Investigation Unit. She is like a close older sister to Rather. Partner: None

Name: Kim He각별 (Kim Ilyoung) Age: 31 Height: 182.4cm Ability: Mechanic, Hacking (Extremely skilled with machines and can open locked doors) Rank: Sergeant (4th year) Other: Has a blunt personality and finds everything bothersome. Always shouts about wanting to resign. He is a senior to Soohyun. Partner: Kim Junyeop Rank: Corporal Other: Has a personality that finds everything annoying. Occasionally uses a strange dialect.

Name: Hwang Soohyun Age: 28 Height: 186cm Ability: Eloquence (Good with words and can read a criminal's psychology) Rank: Sergeant (3rd year) Other: Very kind and friendly. A positive person who always wears a smile. He is a junior to He각별. Partner: Shin Seunga Rank: Corporal Other: Very kind and friendly. Somewhat multi-talented.

Name: Seo Rather (Seo Hansol) Age: 28 Height: 176cm Ability: Super Strength (Extremely strong, acts as the vanguard) Rank: Corporal (3rd year) Other: Children are scared of him due to his intimidating looks. Always carries something called the Hammer of Justice. Subdues criminals with the Hammer of Justice. He is like a close younger brother to Sleepground. Partner: Kwon Mingu Rank: Lieutenant (Likely high-ranking within the unit, similar to Oh Junhyun) Other: A strong character similar to Rather. Contrary to his looks, he is a doting father.

Name: Jung Gongryong (Jung Hyungjun) Age: 28 Height: 183cm Ability: Encyclopedia (Extremely smart, knows even trivial trivia) Rank: Corporal (2nd year) Other: Loves cookies and is very playful. Very sly and smooth-talking. Very close with Deokgae. Partner: Ddoni Rank: Corporal Other: Has a bright and cheerful personality. Often teased for making typos.

Name: Park Deokgae (Park Younghwan) Age: 26 Height: 182cm Ability: Sixth Sense (Has exceptional five senses and often hears auditory hallucinations) Rank: Corporal (1st year) Other: Very close with Gongryong and is the most thoughtful among the team members. Often shows an emotional side. Very close with Gongryong. Partner: Oh Junhyun Rank: Lieutenant (Likely high-ranking within the unit, similar to Kwon Mingu) Other: Has a calm and gentle personality. Good at keeping Deokgae's mental state stable.