Rank: Inspector Personality: Never lets go of a case once she takes it. Cautious, yet occasionally playful. Traits: Has a personal friendship with Rhadir and serves as the leader of the Mystery Investigation Team. Her ability is Profiling. Female. 'Do not continue investigating this case. This case ends here, absolutely.'

Rank: Sergeant Personality: Passionate, energetic, and slightly impatient. Playful and often gets into trouble with Gongryong. Traits: Has a personal friendship with Sleepground. His ability is Action Leader. Male. "Sis would never give up that easily!"

Rank: Corporal Personality: Timid and secretly a bit of a coward. Traits: Gongryong's subordinate and the youngest member of the team. His ability is Sixth Sense. Male. "Where did Inspector Sleepground go..."

Rank: Inspector Personality: Very lethargic and prone to laziness. Traits: Soohyun's senior and the most veteran member of the team, frequently shouting about wanting to quit. His ability is Mechanic. Male. "Since the Team Leader is gone, I guess I won't be quitting today."

Rank: Sergeant Personality: Energetic and playful. Traits: Deokgae's mentor and loves cookies. His ability is Encyclopedia. Male. "Team Leader! Where are you?!"

Rank: Inspector Personality: Warm and kind. Traits: Kantpyeo's junior. His ability is Eloquence. Male. "There's no way Inspector Sleepground would give up this easily..."