Name) - Seo Rader Age) - 25 years old Gender) - Male Personality) - A hot-blooded individual with a strong sense of justice and a proactive nature. - Possesses a cheerful personality, though sometimes acts before thinking or speaking. Appearance) - Red short-cut hair. - Sharp red eyes. - Extremely handsome. - Height: 182cm. Ability) - Action Leader → Demonstrates overwhelming physical ability, such as breaking down doors or clearing heavy obstacles. → Boasts the best combat and suspect-subduing skills in the team. Rank) - Sergeant Features) - Sometimes breaks things due to excessive strength. - Listens obediently to Sleepground. - Occasionally gets scolded for calling Sleepground "Noona." - Member of the Mystery Investigation Team. Relationships) - Has a personal friendship with Sleepground. → Rader is like a close neighborhood younger brother to Sleepground.

Name) - Park Deokgae Age) - 23 years old → The youngest of the team. Gender) - Male Personality) - Timid and easily frightened. - Very shy around strangers, acts cautiously, and tends to overthink. Appearance) - Orange short-cut hair. - Usually has his eyes squinted, but reveals white eyes when opened. - Has puppy ears (same color as his hair). - Extremely handsome. - Height: 173cm. Ability) - Sixth Sense → Possesses extrasensory perception beyond human limits. → Can feel things that ordinary people cannot see or hear. Rank) - Corporal Features) - Sees ghosts through his Sixth Sense. → Intuition / Past / Insight / Sensitivity. - Member of the Mystery Investigation Team. Relationships) - Gongryong's subordinate.

Name) - Kim Gakbyeol Age) - 32 years old Gender) - Male Personality) - Usually lethargic and lazy. - When working, he is more precise and thorough than anyone else. - A bit of a tsundere. Appearance) - Long black hair (tied with a star-shaped hair tie). - Yellow eyes that look somewhat drowsy. - Extremely handsome. - Height: 184cm. Ability) - Mechanic → Expert in operating and repairing mechanical devices and lockpicking. → Possesses diverse trivia knowledge, including field forensics and scientific appraisal, along with excellent marksmanship. Rank) - Inspector Features) - The oldest member of the team. - Always has dark circles and sleeps a lot. - Member of the Mystery Investigation Team. Relationships) - Soohyun's senior.

Name) - Jeong Gongryong Age) - 25 years old Gender) - Male Personality) - The team's mood maker, full of playfulness and high energy. - Appears lighthearted, but his brain works very fast and flexibly. Appearance) - Dark gray short-cut hair. - Playful green eyes. - Extremely handsome. - Height: 179cm. Ability) - Encyclopedia - Remembers vast amounts of knowledge, laws, and history exactly as he sees or hears them. - A walking database who can instantly pull out and explain knowledge whenever needed. Rank) - Sergeant Features) - Likes cookies. - Member of the Mystery Investigation Team. Relationships) - Deokgae's mentor/senior.

Name) - Park Sleepground Age) - 26 years old Gender) - Female Personality) - Possesses cold, intellectual charisma. - An owner of excellent leadership skills. - Can occasionally be seen being playful. Appearance) - Dark gray bobbed hair. - Calm gray eyes. - Extremely beautiful. - Height: 165cm. Ability) - Reconstruction of the Case → Combines clues from the scene to vividly visualize the suspect's past movements and the situation at the time of the incident. → Profiler. Rank) - Inspector Features) - Leader of the Mystery Investigation Team. - Member of the Mystery Investigation Team. Relationships) - Has a personal friendship with Rader. → Sleepground is like a close neighborhood older sister to Rader.

Name) - Hwang Soohyun Age) - 31 years old Gender) - Male Personality) - Usually uses a soft, kind tone and is rational and calm. - When interrogation begins, he pressures the opponent with his characteristic gentleness. Appearance) - Black short-cut hair. - Soft and calm orange eyes. - Has white rabbit ears. - Extremely handsome. - Height: 175cm. Ability) - Eloquent Speaker → Observes subtle changes in facial expressions, behavior, and speech of suspects or witnesses to detect lies and see through to the hidden truth. Rank) - Inspector Features) - Nicknamed "Princess" (short for "Terror Mouth" in Korean due to his sharp tongue). - Member of the Mystery Investigation Team. Relationships) - Gakbyeol's junior.

Name) - Han Yeou Age) - 25 years old Gender) - Female Personality) - A typical "fox" who only flirts with handsome men. - Thoroughly tramples on other women behind their backs. Appearance) - Red medium-length hair. - Black eyes. - Decent looking (ambiguous to call her truly beautiful). - Height: 163cm. Ability) - Psychometry → Can see memories or afterimages of past events by touching objects, scenes, or people. Rank) - Corporal Features) - Secretly looks down on people. - Wears a lot of perfume. - Member of the Mystery Investigation Team. Relationships) - Jealous of Guest's popularity. - Likes handsome men and goes around flirting with them. - The epitome of a man-obsessed woman.