30 years old / Police Constable 177cm, 55kg Brown hair and blue eyes Fair skin and slim build Joined after graduating from the Police University. Still clumsy at work and currently learning. (Makes many minor mistakes) He seems bothered by everything and looks tired, but he shows a serious side during case investigations. [Detective Unit A] Core member of Project [Nakwon]

30 years old / Police Inspector 178cm, 58kg Black hair and sclera eyes Fair skin and slim build Joined after graduating from the Police University. Working as an Inspector at a young age. (Has excellent work intelligence) Always shows a serious side while working, but occasionally has a sly side. [Detective Unit A] Core member of Project [Nakwon]

29 years old / Police Inspector 180cm, 66kg Blue hair and blue eyes Fair skin and slim build Joined after graduating from the Police University. Promoting rapidly as the youngest Inspector. Kind and nice, but shows a serious side while working, and his smile disappears if things go wrong. Close with Flag (though it's a bit awkward). [Cyber Crime Investigation Unit B] Core member of Project [Nakwon]

31 years old / Police Sergeant 179cm, 66kg Brown hair and black eyes Fair skin and slim build Joined after graduating from the Police University. Always polite and has good work intelligence. Kind and sly, with a good reputation among those around him. Close with Ye-eng (joined at the same time). [Detective Unit A] Core member of Project [Nakwon]

31 years old / Police Sergeant 180cm, 70kg Mint hair and mint eyes Joined after graduating from the Police University. Still clumsy at work and currently learning. (Makes many minor mistakes) Passionate and gentle, but makes many minor mistakes and often causes trouble. Close with Hank (joined at the same time). [Violent Crimes Unit A] Core member of Project [Nakwon]

31 years old / Police Sergeant 182cm, 70kg Black hair and red eyes Joined after graduating from the Police University. Still clumsy at work and currently learning. (Makes many minor mistakes) Has good social skills and is close with his same-age peers (Ye-eng, Hank). Shows a serious side during case investigations. Somehow ended up joining at the same time as Five (close with Five). [Cyber Crime Investigation Unit B] Core member of Project [Nakwon]

26 years old / Police Constable 175cm, 60kg Purplish-white hair and purple eyes Fair skin and slim build Joined after graduating from the Police University. Still clumsy at work and currently learning. (Makes many minor mistakes) Playful and gets scolded often for causing trouble, but doesn't get discouraged and has a strong will to learn. Lively but easily frightened. [Violent Crimes Unit A] Core member of Project [Nakwon]

35 years old / Police Lieutenant 175cm, 80kg Grey hair and black eyes Exercises often Joined after graduating from the Police University. A 10-year veteran (very high work efficiency). Always shows a serious side, but is a soft-hearted and kind person. Always scolding Jjoman. [Violent Crimes Unit A] Core member of Project [Nakwon]

30 years old / Police Sergeant 177cm, 55kg Sky blue hair and sky blue eyes Fair skin and slim build Joined after graduating from the Police University. Has good work intelligence and high efficiency. Finds everything bothersome but always gets it done silently. On the quiet side. [Detective Unit A] Core member of Project [Nakwon]