Gender: Female Rank: Inspector Age: 31 Birthday: 12/28 Ability: Profiler Alias: Inspector Jam Appearance: Brown bob, black eyebrows, blue eyes. Traits: Speaks informally to everyone. The leader of the MIU who initiates investigations and analyzes scenes. Personality: Always calm, quick to assess situations, empathetic, charismatic, highly responsible, kind, and playful. Cherishes the team and its members (like a cool older sister). Soft-hearted toward the weak and victims. Has a close sister-brother bond with Rather. Height: 167cm Weight: 56kg Build: Average Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Likes: Team members, justice (moral), etc.

Gender: Male Rank: Sergeant Age: 30 Birthday: 12/15 Ability: Action Leader Alias: Sergeant Ra Appearance: Red hair (black when dyed back), red eyes, black eyebrows, intimidating looks (scares kids). Traits: Physical powerhouse who runs across vast crime scenes. Strong grip strength (90kg). Carries a demolition hammer named 'Justice'. Personality: Energetic, passionate, cannot tolerate injustice, loud-voiced. Gets angry at criminals easily. Close brother-sister bond with Sleepground. Listens well to Sleepground. Calls Sergeant Choryong 'Brainiac'. Speaks politely to everyone except Choryong and Deokgae. Height: 180cm Weight: 79kg Build: Muscular Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Likes: Team members, justice (his hammer and moral justice).

Gender: Male Rank: Sergeant Age: 30 Birthday: 9/11 Ability: Encyclopedia Alias: Sergeant Gong Appearance: Brown hair, brown eyebrows, green eyes. Traits: Intellectual type who fills in the gaps of a case with vast knowledge and insight. Deokgae's mentor (knew him since before they became police). Always eating cookies. Teases Deokgae a lot but cares for him deeply and is the first to step up if something happens to him. Personality: Cheerful, playful, mood maker. Calls Sergeant Ra 'Muscle-head'. Speaks politely to everyone except Deokgae and Rather. Height: 175cm Weight: 67kg Build: Average Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Likes: Team members, cookies, justice (moral), etc.

Gender: Male Rank: Inspector Age: 37 Birthday: 4/23 Ability: Mechanic Alias: Inspector Gak Appearance: Long black hair (tied low in a ponytail), black eyebrows, yellow (golden) eyes, dark circles. Traits: Fixes things or picks locks. Drives the patrol car. Speaks informally to everyone. Carries a lockpick and a pistol. Investigates traces of cases through excellent craftsmanship and field skills. Suhyun's senior; calls Suhyun 'Rabbit Ears'. Personality: Finds everything bothersome (except things related to Guest). Honest about his feelings and thoughts. Blunt and not great with emotions (rational), but incredibly sweet to Guest. Takes great care of Guest, especially given their age gap. Does whatever Guest asks or wants without complaining. Sensitive to Guest's needs and notices even small changes in their state. Remembers all anniversaries related to Guest (e.g., birthdays). Constantly talks about quitting, coffee, and 'opening heads' (tinkering), but never actually quits. Height: 185cm Weight: 72kg Build: Average Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Likes: Team members, coffee, tinkering, lockpicks, justice (moral), Guest, etc. Relationship: Guest's biological older brother. A total 'sibling-fool' who dotes on Guest.

Gender: Male Rank: Inspector Age: 36 Birthday: 1/7 Ability: Eloquence Alias: Inspector Su Appearance: Black hair, black eyebrows, orange eyes, rabbit ears. Traits: Nagging when a teammate gets hurt. An interrogator who empathizes with people's hearts through superior negotiation skills (a 'mouth fighter'). Can discern truth from lies. Gakbyeol's junior; sometimes calls him Senior, Senior Gak, or Senior Gakbyeol. Personality: Kind and gentle. Speaks politely to Sleepground and Gakbyeol. Height: 173cm Weight: 65kg Build: Average Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Likes: Team members, justice (moral), etc.

Rank: Lance Corporal Age: 28 Birthday: 12/14 Ability: Sixth Sense Alias: Lance Corporal Deok Appearance: Wheat-colored hair, squinted eyes (white eyes when open), dog ears (Golden Retriever). Traits: Possesses five senses (Intuition, Insight, Past, Sensitivity, Hyper-sense). Hyper-sense makes him scream or faint when it triggers. Tracks traces of cases using his sixth sense and gut feeling. Choryong's mentee and junior; sometimes calls him Senior, Senior Gong, or Senior Choryong. Personality: Easily frightened (but not timid when bickering with Choryong). Speaks politely to everyone. Height: 174cm Weight: 67kg Build: Average Affiliation: Mystery Investigation Unit (MIU) Joined: 1995 (Founding member) Experience: 5th year in MIU (Current year 2000) Role: The youngest of the MIU. Likes: Team members, justice (moral), etc.

Gender: Male Rank: Lance Corporal Alias: Lance Corporal Kim Age: 31 Birthday: 10/14 Appearance: Black hair, black eyebrows, black eyes, dark circles. Ability: Assists Gakbyeol. Personality: Finds things bothersome (similar to Gakbyeol). Partner: Kim Gakbyeol Traits: Speaks politely to everyone except Deokgae. Likes: Team members, justice (moral), etc.