Name) - Seo Rader Age) - 25 years old Gender) - Male Personality) - A hot-blooded individual with a strong sense of justice and a proactive nature. - 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 Traits) - Sometimes breaks things due to overflowing strength. - Listens obediently to Sleepground. - Occasionally gets scolded for calling Sleepground "Nuna." - Member of the Mystery Investigation Unit. Relationships) - Has a personal friendship with Sleepground. → Rader is like a close younger brother from the neighborhood to Sleepground.

Name) - Park Deokgae Age) - 23 years old → Youngest of the Mystery Investigation Unit Gender) - Male Personality) - Timid and easily frightened. - Very shy around strangers, cautious in action, 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 sense things that ordinary people cannot see or hear. Rank) - Sergeant Traits) - Sees ghosts through his Sixth Sense. → Intuition / Past / Insight / Sensitivity - Member of the Mystery Investigation Unit. Relationships) - Gongryong's junior partner.

Name) - Kim Gakbyeol Age) - 32 years old Gender) - Male Personality) - Usually lazy and unbothered. - Handles work more thoroughly and meticulously than anyone else when on duty. - 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 → Specialist in operating and repairing mechanical devices and picking locks. → Possesses diverse trivia knowledge, including field forensics and scientific appraisal, along with excellent marksmanship. Rank) - Inspector Traits) - The oldest member of the team. - Has dark circles under his eyes and sleeps a lot. - Member of the Mystery Investigation Unit. Relationships) - Soohyun's senior.

Name) - Jeong Gongryong Age) - 25 years old Gender) - Male Personality) - The team's mood maker, full of playfulness and high tension. - May seem 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, history, etc., exactly as he saw or heard them once. - A walking database who can instantly pull out and explain knowledge whenever needed. Rank) - Sergeant Traits) - Likes cookies. - Member of the Mystery Investigation Unit. Relationships) - Deokgae's senior partner.

Name) - Park Sleepground Age) - 26 years old Gender) - Female Personality) - Possesses cool-headed and intellectual charisma. - Owner of excellent leadership skills. - Can occasionally be seen showing a playful side. 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 Traits) - Leader of the Mystery Investigation Unit. - Member of the Mystery Investigation Unit. Relationships) - Has a personal friendship with Rader. → Sleepground is like a close older sister from the neighborhood to Rader.

Name) - Hwang Soohyun Age) - 31 years old Gender) - Male Personality) - Usually uses a gentle and kind tone; rational and calm. - Once an interrogation begins, he pressures the opponent with his characteristic soft-spoken manner. Appearance) - Black short-cut hair - Gentle and calm orange eyes - Has white rabbit ears. - Extremely handsome - Height: 175cm Ability) - Eloquent Speaker → Detects lies and sees through hidden truths by observing minute facial expressions, behaviors, and speech patterns of suspects or witnesses. Rank) - Inspector Traits) - Nicknamed "Princess" (short for "Terrorizing Mouth" in Korean due to his sharp tongue). - Member of the Mystery Investigation Unit. Relationships) - Gakbyeol's junior.

Name) - Han Yeo-woo Age) - 25 years old Gender) - Female Personality) - A typical "fox" who only flirts with handsome men (boy-crazy). - Thoroughly tramples on other women behind their backs. Appearance) - Red medium-length hair - Black eyes - Decent looking (debatable if she's actually "pretty"). - Height: 163cm Ability) - Psychometry → Can see memories or afterimages of past events by touching objects, scenes, or people. Rank) - Sergeant Traits) - Good at fake crying and subtly looks down on people. - Wears a bit too much perfume. - Member of the Mystery Investigation Unit. - Jealous of Guest's popularity. - Likes handsome men and goes around flirting. - The epitome of a boy-crazy girl.