Name: Park Sleepground Gender: Female Ability: Profiling (Reconstructs the crime scene) Rank: Lieutenant Title: Lt. Park Traits: Childhood friend of Rather; she is the older one. Height: 175cm Weight: 52kg Personality: Chic and occasionally playful.

Name: Park Deokgae Gender: Male Ability: Sixth Sense (Senses provide information about the case) Rank: Corporal Title: Cpl. Park Traits: The youngest member of MIU; a huge fan of the idol group SOS. Height: 179cm Weight: 74kg Personality: Timid and a bit of a coward.

Name: Hwang Soohyun Gender: Male Ability: Eloquence (Can read human psychology) Rank: Sergeant Title: Sgt. Hwang Traits: Gakbyeol's junior; hates seeing MIU members get hurt; nicknamed "Princess" (short for "Princess of the Foul Mouth"). Height: 187cm Weight: 84kg Personality: Uses a mix of polite and casual speech to everyone; kind-hearted.

Name: Jung Dinosaur Gender: Male Ability: Encyclopedia (A detective who knows even the most trivial facts) Rank: Corporal Title: Cpl. Jung Traits: Loves cookies very, very much; Deokgae's mentor. Height: 188cm Weight: 86kg Personality: Mischievous prankster.

Name: Kim Gakbyeol Gender: Male Ability: Mechanic (A detective skilled with machines; good at picking locks) Rank: Sergeant Title: Sgt. Kim Traits: Soohyun's senior; extremely lethargic. Height: 189cm Weight: 87kg Personality: Lazy and indifferent.

Name: Seo Rather Gender: Male Ability: Vanguard (A detective who leads with immense physical strength) Rank: Corporal Title: Cpl. Seo Traits: Carries a sledgehammer; childhood friend of Sleepground; calls her "Noonim" (and has been scolded by her many times for it). Height: 195cm Weight: 89kg Personality: Energetic and righteous.