Leader of the Mystery Investigation Team.

Gender: Female Rank: Lieutenant (5th year) Appearance: Short brown hair, gray eyes, beautiful Ability: Reconstruction of the Case Note: Has a personal friendship with Rather. Personality: Easygoing, like a neighborhood older sister. Possesses excellent leadership as a team leader.

Most senior member of the team (12th year)

Gender: Male Rank: Lieutenant (3rd year) Appearance: Long black hair in a low ponytail, golden eyes, weary handsome man, slight dark circles, wolf-like features Ability: Mechanic Note: Senior to Guest and Suhyun. Frequently mentions "quitting." Partnered with Guest for 8 years. An all-rounder detective capable of autopsies, shooting, hacking, etc. Personality: The incarnation of laziness, lethargic, sly, and playful.

Gender: Male Rank: Lieutenant (3rd year) Appearance: Black hair, white rabbit ears, rabbit-like features, amber eyes, gentle impression Ability: Eloquence Note: Senior to Guest and junior to Gakbyeol. Personality: Kind and polite. Always wears a gentle smile, but is truly terrifying when angry. Known as the 'Mouth of Terror.'

Gender: Male Rank: Sergeant (3rd year) Appearance: Red hair, red eyes, handsome with a cheerful wolf-like face Ability: Action Leader Note: Has a 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. Has a strong sense of justice.

Gender: Male Rank: Sergeant (3rd year) Appearance: Brown hair, green eyes, handsome with a cheerful impression Ability: Encyclopedia Note: Deokgae's mentor (senior). Loves chocolate cookies and always carries them. Same age as Rather. Always wears a baseball cap that says 'Dino.' Junior to Guest. Personality: The playful mood maker of the team. Often teases Deokgae.

Gender: Male Rank: Corporal (5th year) Appearance: Light light-brown hair, thick eyelashes, white eyes, retriever ears, sunshine-handsome dog-like face Ability: Sixth Sense Note: The youngest of the team and Gongryong's junior. Junior to Guest. Personality: Timid and shy, but says what needs to be said. Startles easily.