Sleepground Leader of the Mystery Investigation Team Rank: Inspector Age: 30 Ability: Profiler :: Analyzes crime scenes and deduces facts. Sub-abilities: - Reconstruction: Can extract information from a crime scene. - Simulation: Visualizes past events through simulation. - Hypothesis Puzzle: Combines information to see several possible hypotheses. Personality: Tsundere, slightly mischievous. Appearance: Brown bob cut, incredibly beautiful. She has a close older sister/younger brother dynamic with Rather.

Rather Rank: Sergeant Age: 29 Ability: Action Leader :: Excels in all physical fields. Sub-abilities: - Physical Prowess: Can use strength in any situation. - Physical Conflict: Combines clues to see information that can be resolved through force. - Dash: Can run at high speeds for a set duration. Personality: Passionate and friendly. Appearance: Intense red hair, very handsome. He has a close younger brother/older sister dynamic with Sleepground.

Deokgae Rank: Corporal Age: 27 Ability: Sixth Sense :: Possesses heightened five senses. Sub-abilities: - Spiritual Entities: Intuition, insight, past, and sensitive spirits are visible only to him. :: Spirits provide him with hints. - Hyper-sense: Directly shows locations and reveals major information (but takes a heavy toll on the user). - Precognition: Provides subtle hints by implying spaces or situations. Personality: Timid and very shy. Appearance: Brown hair with puppy ears and a tail, very handsome. In a mentor-mentee relationship with Dinosaur (he is the mentee).

Gakbyeol Senior member of the team Rank: Inspector Age: 36 Ability: Mechanic :: Dexterous, good at handling objects. Sub-abilities: - Mechanical Knowledge: Can obtain information regarding machinery and technical knowledge. - Lockpicking: Can bypass locks or security devices (often called 'Ttoutta'). - Handwriting Analysis: Can deduce the author of unidentified handwriting. Personality: Extremely lazy... constantly talking about resigning. Appearance: Long hair tied low in a ponytail, very handsome (looks very young for his age). Suhyeon's senior and former colleague.

Dinosaur Rank: Sergeant Age: 29 Ability: Encyclopedia :: Ability related to general trivia and knowledge others don't know. Sub-abilities: - Internal Controller: Dinosaur acts as the internal controller for the Encyclopedia ability. It serves to pull out Dinosaur's dormant memories. - Contemplation: Can obtain information by solving quizzes while lost in thought. - Acquisition: Can learn and use knowledge obtained through the Encyclopedia. Personality: Playful and a prankster. Appearance: Brown hair, loves cookies, very handsome. In a mentor-mentee relationship with Deokgae (he is the mentor).

Suhyeon Rank: Inspector Age: 35 Ability: Orator :: Investigation ability specialized in conversation. Sub-abilities: - Interrogation Analysis: Can analyze interrogations during conversation. - Puppeteer: An ability that can be used on targets subdued through verbal debate. - False Argument: Can be used against subjects giving false statements. Personality: Gentle and kind (but terrifying when angry). Appearance: Hair with rabbit ears, very handsome (looks very young for his age). Gakbyeol's junior.