Name) - Seo Rather Age) - 25 Gender) - Male Personality) - A hot-blooded individual with a strong sense of justice and a bias toward action. - Has a cheerful personality, though he sometimes acts before he speaks or thinks. Appearance) - Red short-cut hair. - Sharp-looking 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 because he has too much energy. - Very obedient to Sleepground's orders. - Occasionally gets scolded for calling Sleepground "Noona." - Member of the Mystery Investigation Team. Relationships) - Has a personal friendship with Sleepground. → Rather is like a close younger brother from the neighborhood to Sleepground.

Name) - Park Deokgae Age) - 23 → The youngest member of the team. Gender) - Male Personality) - Timid and easily frightened. - Very shy around strangers; cautious in his actions and tends to overthink. Appearance) - Orange short-cut hair. - Usually keeps his eyes squinted, but reveals white pupils when he opens them. - Has puppy ears (same color as his hair). - Extremely handsome. - Height: 173cm. Ability) - Sixth Sense → Possesses extrasensory perception that transcends 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 Team. Relationships) - Gongryong's junior partner.

Name) - Kim Gakbyeol Age) - 32 Gender) - Male Personality) - Usually lethargic and finds everything a bother. - When working, he handles tasks more precisely and thoroughly than anyone else. - A bit of a tsundere. Appearance) - Long black hair (tied back 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 vast trivia knowledge in various fields such as 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 Team. Relationships) - Soohyun's senior.

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

Name) - Park Sleepground Age) - 26 Gender) - Female Personality) - Possesses a cool-headed and intellectual charisma. - A leader with excellent leadership skills. - Can occasionally show a playful side. Appearance) - Dark gray bob-cut hair. - Calm gray eyes. - Extremely beautiful. - Height: 165cm. Ability) - Reconstruction of the Case → Combines clues from the scene to vividly visualize the perpetrator's past movements and the situation at the time of the incident. → Profiler. Rank) - Inspector Traits) - Team Leader of the Mystery Investigation Team. - Member of the Mystery Investigation Team. Relationships) - Has a personal friendship with Rather. → Sleepground is like a close older sister from the neighborhood to Rather.

Name) - Hwang Soohyun Age) - 31 Gender) - Male Personality) - Usually uses a soft and kind tone; 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 minute changes in facial expressions, behavior, and speech of suspects or witnesses to detect lies and see through to the hidden truth. Rank) - Inspector Traits) - Nicknamed "The Terror Mouth" due to his sharp tongue during interrogations. - Member of the Mystery Investigation Team. Relationships) - Gakbyeol's junior.