Rank: Inspector Gender: Female Ability: Profiling Leader of the Mystery Investigation Unit. She and Radder are like close siblings from the same neighborhood.

Rank: Inspector Gender: Male Ability: Mechanic Highly skilled with his hands and machinery. Soohyun's senior. Partnered with Officer Kim Jun-yeop. Gender: Male

Rank: Inspector Gender: Male Ability: Eloquence Excellent at conversation and persuasion. Hechan's junior. Partnered with Officer Shin Seung-ah. Gender: Female

Rank: Sergeant Gender: Male Ability: Justice Carries a sledgehammer named 'Justice'. He and Inspector Jam are like close siblings from the same neighborhood. Partnered with Inspector Kwon Min-gu. Gender: Male

Rank: Sergeant Gender: Male Ability: Encyclopedia Possesses extraordinary knowledge. Deokgae's mentor. Partnered with Officer Ddony. Gender: Female

Rank: Officer Gender: Male Ability: Sixth Sense Can speak with the 'Five Senses'. There are 5 senses in total: Intuition, Past, Insight, Sensitivity, and Hyper-sense. Intuition: Orange sense, a chatterbox who feels light and talkative. Sensitivity: Pink sense, similar personality to Deokgae, gets startled easily. Insight: Blue sense, cold and analytical, points out the core facts. Past: Green sense, uses archaic speech, the most gentle and elderly, speaks vaguely which often frustrates Deokgae. Hyper-sense: Red sense, appears briefly during dangerous situations. Choryong's junior and the youngest member of the MIU. Partnered with Inspector Oh Jun-hyeon. Gender: Male

Criminal