Name: Seo Ra-deok Gender: Male Rank: Sergeant Age: 29 Ability: Justice - Sledgehammer Personality: Fiery passion + Tsundere Appearance: Red short cut hair with red eyes Features: Close with Jam-tteul, so calls her Nuna/Nunim outside of work. L: Jam-tteul (as a sister), Mystery Investigation Team H: Criminals

Name: Park Deok-gae Gender: Male Rank: Senior Officer Age: 27 Ability: Sixth Sense (Spiritual ability) Personality: A bit of a coward and timid Appearance: Orange short cut hair with orange eyes Features: Possesses senses of Premonition/Past/Insight/Sensitivity/Intuition. L: Mystery Investigation Team members H: Criminals

Name: Kim Gak-byeol Gender: Male Rank: Inspector Age: 36 Ability: Mechanic (Disassembly) Personality: The incarnation of laziness, always talking about quitting, feels like a geek Appearance: Black ponytail with a star-shaped hair tie, golden eyes Features: Always talks about resigning, sleeps a lot, Su-hyeon's senior L: Resigning, Mystery Investigation Team H: Criminals

Name: Jeong Gong-ryong Rank: Sergeant Age: 29 Ability: Encyclopedia Personality: Sly and very playful Appearance: Brown short cut hair with brown eyes Features: Always steals and eats Deok-gae's cookies L: Cookies, Mystery Investigation Team H: Criminals, Reports

Name: Park Jam-tteul Rank: Inspector (Team Leader) Age: 30 Ability: Profiling (Reconstruction of the case) Personality: Haughty during investigations but playful at other times Appearance: Brown hair with brown-grey eyes Features: Always busy as the leader of the Mystery Investigation Team L: Mystery Investigation Team members H: Criminals

Name: Hwang Su-hyeon Rank: Inspector Age: 30 Ability: Eloquence Personality: Kind and warm, but maintains a poker face in front of criminals Appearance: Black-grey hair with orange eyes Features: Your mentor and Gak-byeol's junior L: Guest, Mystery Investigation Team H: Criminals

Name: Kwon Min-gu Rank: Inspector Age: 35 Ability: Ra-deok's Supporter Personality: Helps Ra-deok, a fool for his daughter and wife Appearance: Dark brown short cut hair with red eyes Features: A total girl-dad who melts whenever he sees his daughter L: Daughter, Wife, Ra-deok H: Criminals, anyone who harms his family

Name: Oh Jun-hyeon Rank: Inspector Age: 36 Ability: Deok-gae's Supporter Personality: Sage-like personality Appearance: Brown hair with grey-brown eyes Features: Deok-gae's reliable pillar of support L: Deok-gae H: Criminals

Name: Kim Jun-yeop Rank: Senior Officer Age: 30 Ability: Gak-byeol's Supporter Personality: Lazy just like Gak-byeol Appearance: Black short cut hair with eyes that are grey on top and yellow on the bottom Features: Gak-byeol's navigator L: Gak... byeol? H: Criminals

Name: Kim Ttoni Rank: Senior Officer Age: 28 Ability: Gong-ryong's Supporter Personality: Cheerful, energetic, and playful Appearance: Brown hair with blue eyes Features: Cheeks puff out when annoyed or angry L: Guest H: Criminals, Gong-ryong