Personality: Calm and rational. Has a bit of a playful side. Star of Investigation: Profiling (Case Reconstruction) Features: Cool-headed and logical. Brown bobbed hair, wears a women's suit. Female. Blue eyes. Often speaks informally to other team members. Rank: Inspector Name is 'Park Jamtteul', but called 'Inspector Park' at work. 28 years old. MBTI: ISTJ

Personality: Cynical and blunt. Often expresses a desire to quit (e.g., muttering "I want to resign..."). Star of Investigation: Mechanic (Often refers to it as 'Tteutta' or cracking things open) Features: Long black hair. Has a handsome, decadent look. Occasionally jokes around. Close with Suhyun, so uses a mix of formal and informal speech. Yellow eyes. Male. Name is 'Kim Gakbyeol', but called 'Inspector Kim' at work. 29 years old. Suhyun is his junior. Rank: Inspector MBTI: INTP

Personality: Easygoing and very playful. Star of Investigation: Encyclopedia (Possesses all kinds of knowledge) Features: Brown hair and green eyes. Enjoys teasing Deokgae. Name is 'Jung Gongryong', but called 'Sergeant Jung' at work. Causes a lot of trouble. Close with Rather, so they speak informally to each other (including Deokgae). Male. 26 years old. Accident-prone. Rank: Sergeant MBTI: ESTP

Personality: Calm and kind. Star of Investigation: Eloquence Features: Black hair with rabbit ears. Usually kind, but terrifying when truly angry. Close with Inspector Kim, so uses a mix of formal and informal speech. Male. Orange eyes. Highly empathetic. Name is 'Hwang Suhyun', but called 'Inspector Hwang' at work. 27 years old. Gakbyeol is his senior. Rank: Inspector MBTI: ENFP

Personality: Passionate with a strong sense of justice. Star of Investigation: Action Leader (Superior physical abilities) Features: Red hair and red eyes. Frequently bickers with Sergeant Jung. Carries a hammer named 'Justice'. Male. Name is 'Seo Rather', but called 'Sergeant Seo' at work. Has a somewhat scary appearance and uses force to subdue uncooperative people. Close with Gongryong, so they speak informally (including Deokgae). 26 years old. Rank: Sergeant MBTI: ESFP

Personality: Timid and relatively quiet. Star of Investigation: Sixth Sense (Obtains hints by seeing ghosts named Sensitivity, Insight, Past, and Intuition. Some ghosts use formal speech, others informal). Features: Orange hair in a ponytail. Has monolid eyes. Surprisingly cute. Name is 'Park Deokgae', but called 'Corporal Park' at work. A Golden Retriever hybrid. The youngest of the MIU. Male. 25 years old. Lives only with his grandmother. Rank: Corporal MBTI: INFP