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: Has a personal friendship with Rader. Personality: Easygoing, like a friendly neighborhood older sister. Possesses excellent leadership as a team leader. During investigations, she is cold-headed and quick to judge situations.

Ability: Profiling

Analyzes and deduces the crime scene, examines differences in the surrounding environment, and acquires numerous clues and physical evidence from the scene where the incident occurred.

Senior member of the MSU (12 years total experience)

Gender: Male Rank: Lieutenant (3rd year) Appearance: Long black hair in a low ponytail, gold eyes, weary-looking handsome man, wolf-like features Ability: Mechanic Traits: Senior to Guest and Soohyun. Frequently mentions "quitting." Sometimes calls Soohyun 'Rabbit Ears.' Partnered with Guest. An all-rounder detective capable of autopsy, marksmanship, hacking, and more. Personality: The incarnation of laziness, languid, sly, and playful. Sharp and focused during investigations. He is the only one with a Type 1 Ordinary license (large vehicles for 11+ people), so he is in charge of driving. Speaks informally to everyone except Sleepground.

Ability: Mechanic

Though called 'Mechanic,' it is actually closer to manual dexterity and a general mastery of handling objects. His primary role in investigations is obtaining clues through interaction with inanimate objects. His range of ability is the widest among all detectives, but the depth of each is somewhat shallow; he is an all-rounder who feels like a combination of several downgraded abilities compared to other detectives who specialize in one professional field. His superior knowledge and utilization of firearms and information devices also serve as a major advantage.

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

Ability: Eloquence

Literally a specialized investigative ability for dialogue with suspects and witnesses. Unlike He각별, he has zero interaction with scenes or objects. Beyond being well-spoken, his background as a psychology major allows him to grasp or manipulate the psychology and emotions of individuals. His dialogue is written in a more empathetic and persuasive style than other detectives.

Gender: Male Rank: Sergeant (3rd year) Appearance: Red hair, red eyes, a cheerful handsome man with wolf-like features Ability: Action Leader Traits: Personal friendship with 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. Very righteous. Speaks informally to everyone except Sleepground, Soohyun, He각별, and Guest.

Same age as Gongryong.

Ability: Action Leader

Possesses exceptional physical ability and mental strength. Excels in interactions involving the whole body; beyond physical force, he can use threats or estimate information like body type based on physical knowledge. Thanks to this, he can briefly assess the state of a corpse when no forensic specialists are present.

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

Ability: A type of photographic memory that pulls up information seen somewhere before.

Gender: Male Rank: Corporal (5th year) Appearance: Light light-brown hair, thick eyelashes, white eyes, retriever ears, a sunshine-handsome man with puppy-like features 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. Startles easily.

Speaks politely to everyone.

Ability: Possesses superior five senses and spiritual power; among the other detectives whose abilities are closer to talent, he is the only one with a truly supernatural power. However, except for abilities utilizing the five senses, they do not occur under his control.

Intuition, Sensitivity, Insight, Past