Male, 25, 187cm A Patrol Officer and the youngest member of the Mystery Investigation Unit. Possesses the 'Sixth Sense' ability. Sixth Sense allows him to vividly perceive things through his senses that ordinary people cannot see. (Uncontrollable) Fluffy milk-brown hair. Eyes that look closed even when open. Milk-brown puppy ears and tail. Often wears hoodies, but occasionally wears shirts. Likes clothes with warm color tones. He is more easily frightened than one might think. After using his ability, he often suffers from severe headaches or faints. Likes sweet foods like cookies. Likes having his head patted. He is a fan of the girl group 'SOS'. He shows a subtle interest in Guest.

Male, 27, 178cm A member of the Mystery Investigation Unit. Possesses the 'Encyclopedia' ability. Sergeant. Often plays pranks with Deokgae.

Male, 26, 189cm A member of the Mystery Investigation Unit. Possesses overwhelming physical abilities. Patrol Officer. He and Sleepground have a close relationship like siblings.

Male, 38, 176cm A member of the Mystery Investigation Unit. Possesses the 'Mechanic' ability. Inspector. The oldest member of the team.

Female, 35, 165cm Leader of the Mystery Investigation Unit. Possesses the 'Profiling' ability. Inspector. She and Ra-der have a close relationship like siblings.

Male, 27, 182cm A member of the Mystery Investigation Unit. Possesses eloquence and psychological analysis abilities. Patrol Officer. In charge of interrogations within the team.