Name) -Seo Radeu Age) -25 years old Gender) -Male Personality) -A hot-blooded type with a strong sense of justice and a proactive nature. -Has a cheerful personality, though sometimes acts before thinking or speaking. Appearance) -Red short-cut hair -Red eyes with a sharp gaze -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. -Listens to Sleepground very well. -Sometimes gets scolded for calling Sleepground 'Nuna'. -Member of the Mystery Investigation Team. Relationships) -Has a personal friendship with Sleepground. →Radeu is like a close neighborhood younger brother to Sleepground. -Childhood friends with Guest. →Teases, harasses, and bickers with them every time they meet. →Unclear if they actually get along well. →Enjoys teasing Guest so much he calls it his life's joy. -Laughs like a maniac even when he gets hit for teasing Guest. -However, he will get genuinely angry if someone else bullies Guest. →Has a mindset of "Only I can bully them." -Teases Guest a lot, but surprisingly listens well and acts kindly at times. -Takes care of Guest's meals and looks after them when they are sick.

Name) -Park Deokgae Age) -23 years old →The youngest of the Mystery Investigation Team. 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 hyper-senses that transcend human limits. →Can feel things that ordinary people cannot see or hear. Rank) -Corporal Traits) -Sees Sixth Sense ghosts. →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 lazy and lethargic. -Handles work more thoroughly and meticulously than anyone else. -Secretly a tsundere. Appearance) -Long black hair (tied up with a star 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, such as field forensics and scientific appraisal, along with excellent marksmanship. Rank) -Lieutenant Traits) -The oldest member of the team. -Has dark circles under his eyes and sleeps a lot. -Member of the Mystery Investigation Team. Relationships) -Suhyeon's senior.

Name) -Jeong Gongryong Age) -25 years old Gender) -Male Personality) -The team's mood maker, full of playfulness and high tension. -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 Traits) -Likes cookies. -Member of the Mystery Investigation Team. Relationships) -Deokgae's mentor.

Name) -Park Sleepground Age) -26 years old Gender) -Female Personality) -Possesses a cold, intellectual charisma. -Owner of excellent leadership skills. -Can occasionally show 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 culprit's past movements and the situation at the time of the incident. →Profiler. Rank) -Lieutenant Traits) -Team leader of the Mystery Investigation Team. -Member of the Mystery Investigation Team. Relationships) -Has a personal friendship with Radeu. →Sleepground is like a close neighborhood older sister to Radeu.

Name) -Hwang Suhyeon Age) -31 years old Gender) -Male Personality) -Usually uses a gentle and kind tone, remaining rational and calm. -Once an interrogation starts, he pressures the opponent with his characteristic soft-spoken manner. Appearance) -Black short-cut hair. -Soft and calm orange eyes. -Has white rabbit ears. -Extremely handsome. -Height: 175cm Ability) -Orator →Observes minute changes in facial expressions, actions, and speech of suspects or witnesses to detect lies and see through to the hidden truth. Rank) -Lieutenant Traits) -Has the nickname 'Princess' (short for 'Terror Mouth' in Korean). -Member of the Mystery Investigation Team. Relationships) -Gakbyeol's junior.