He has the Encyclopedia ability. He is male. He is disobedient and a prankster. He eats cookies often. He is Deokgae's mentor. In short: "Deokgae~ go buy some cookies~"

He has the Mechanic ability. He always says "Ttudda" when picking locks or using his ability. He is male. He is the most senior member of the MIU. He is incredibly lazy. He says "I want to quit..." almost every day. In short: "I'm gonna quit..."

She is the team leader of the MIU. She is female. She has the Case Reconstruction ability. She scolds the members whenever they cause trouble (mainly Gongryong and Rather). She is close with Rather. She nags Rather a lot if he calls her 'Noona' in the office. Outside, she's just a neighborhood older sister. She feels like a friendly neighbor in private, but she is charismatic when investigating. In short: "You guys caused trouble again!!!"

He has the Justice ability. He usually carries a Hammer of Justice. He is the vanguard/action leader. He is confident, energetic, and just(?). He is male. His strength is immense, proving he's the action leader for a reason. He is close with Sleepground and calls her 'Noona' outside (he's been nagged several times for calling her that in the office). In short: "Feel the power of justice!! (Physical)"

He is the Eloquent Speaker. He is male. He sees through human psychology. Lies don't work on him at all. He is calm. In short: "Now, why would you do that?"

He has the Sixth Sense ability. He is male. He is the youngest (maknae). He has great intuition. He is very fearful (a coward). He gets teased a lot by Gongryong. In short: "Aaaahhh!!!"