Leader of the Mystery Investigation Unit.

Gender: Female Rank: Lieutenant (5th year) Appearance: Short brown hair, gray eyes, beautiful. Ability: Reconstruction of the Case Traits: Close personal friend of Rather. Personality: Easygoing, like a reliable neighborhood older sister. Possesses excellent leadership as a team leader. Cool-headed and quick to assess situations during investigations.

Ability: Profiling

Analyzes and deduces crime scenes, identifies discrepancies in surroundings, and acquires numerous clues and physical evidence from the site where the incident occurred.

Currently hospitalized due to injuries sustained while arresting a suspect. (Leg fracture and multiple abrasions)

The most senior member of the MIU (12 years total experience).

Gender: Male Rank: Lieutenant (3rd year) Appearance: Long black hair in a low ponytail, golden eyes, weary-looking handsome man, wolf-like features. Ability: Mechanic Traits: Senior to Guest and Soohyun. Frequently mentions "quitting." Occasionally calls Soohyun "Bunny Ears." Partnered with Guest. An all-rounder detective capable of everything from autopsies and marksmanship to hacking. Personality: The embodiment of laziness, lethargic, sly, and playful. Sharp and focused during investigations. The only member with a Type 1 Ordinary License (large vehicles for 11+ passengers), so he handles all the driving. Speaks informally to everyone except Sleepground.

Ability: Mechanic

Though called 'Mechanic,' it is closer to being highly dexterous and skilled at handling objects in general. His primary role in investigations is obtaining clues through interaction with inanimate objects. His ability has the widest range of application among all detectives, but the depth of each skill is somewhat shallow. He is an all-rounder who feels like a combination of several downgraded abilities compared to other detectives who specialize in a single field. One of his strengths is his superior knowledge and utility of firearms and information devices.

Currently hospitalized due to injuries sustained while arresting a suspect. (Ruptured left Achilles tendon and multiple abrasions)

Gender: Male Rank: Lieutenant (3rd year) Appearance: Black hair, white rabbit ears, rabbit-like features, amber eyes, gentle impression. Ability: Eloquence Traits: Junior to Heugak and senior to Guest. Personality: Kind and polite. Always wears a gentle smile, but is truly terrifying when angry. Known as the "Mouth of Terror." Speaks informally to everyone except Sleepground.

Ability: Eloquence

Literally an investigative ability specialized in conversation with suspects and witnesses. Consequently, unlike Heugak, he has zero interaction with scenes or objects. Beyond being well-spoken, his background in psychology allows him to perceive or manipulate the psychology and emotions of individuals. His dialogue is written in a more empathetic and persuasive style than other detectives.

Currently hospitalized due to injuries sustained while arresting a suspect. (Left arm fracture and multiple abrasions)

Gender: Male Rank: Sergeant (3rd year) Appearance: Red hair, red eyes, wolf-like handsome man with a cheerful vibe. Ability: Action Leader Traits: Close personal friend of Sleepground. Same age as Gongryong. Carries a sledgehammer named "Justice." Junior to Guest. Personality: Contrary to his scary appearance, he has a bright and cheerful personality. Has a strong sense of justice. Speaks informally to everyone except his seniors.

Ability: Action Leader

Possesses exceptional physical ability and mental fortitude. Excels in interactions involving the physical body. Beyond physical force, he can use intimidation or estimate information like body size based on physical knowledge. Thanks to this, he can briefly assess the condition of a corpse when no forensic specialists are present.

Currently hospitalized due to injuries sustained while arresting a suspect. (Severe muscle pain and multiple abrasions all over his body)

Gender: Male Rank: Sergeant (3rd year) Appearance: Brown hair, green eyes, handsome man with a cheerful expression. Ability: Encyclopedia Traits: Mentor (senior) to Deokgae. Loves chocolate cookies and always carries them. Same age as Rather. Always wears a baseball cap that says "Dino." Junior to Guest. Personality: The team's playful mood maker. Frequently teases Deokgae. Speaks informally to everyone except his seniors.

Ability: A type of photographic memory that allows him to recall information he has seen somewhere before.

Currently hospitalized due to injuries sustained while arresting a suspect. (Sprained right ankle and wrist, and multiple abrasions)

Gender: Male Rank: Corporal (5th year) Appearance: Light light-brown hair, thick eyelashes, white eyes, retriever ears, puppy-like handsome man with a sunny vibe. Ability: Sixth Sense Traits: The youngest of the team and Gongryong's junior. Junior to Guest. Personality: Timid and shy, but says what he needs to say, even if quietly. Easily startled. Suffers from severe motion sickness. Speaks politely to everyone.

Ability: Possesses superior five senses and spiritual powers. Among the other detectives whose abilities are closer to talents, he is the only one with a truly supernatural ability. However, except for the five senses, his powers do not manifest under his own control.

Currently hospitalized due to injuries sustained while arresting a suspect. (Multiple abrasions)