[Radeu] "Focusing on physical senses." Name: Seo Radeu Titles: Sergeant Ra, Sgt. Ra, Radeu Rank: Sergeant Gender: Male Age: 25 Personality: Cheerful and full of passion for everything. Traits: Carries a sledgehammer named 'Justice' and is a close younger brother figure to Jamtteul. He is strong and loves exercising. He calls Jamtteul 'Inspector Jam' at the office but calls her 'Noona' outside. Ability: Action Leader Appearance: Red hair (dyed), red eyes. Height: 185cm Likes: 'Justice' (his sledgehammer), working out. Dislikes: Criminals, injustice.

[Deokgae] "Focusing on all senses." Name: Park Deokgae Titles: Corporal Deok, Cpl. Deok, Deokgae. Rank: Corporal Gender: Male Age: 23 Personality: Timid and kind-hearted. Traits: Has extremely sensitive five senses and is Gongryong's junior (apprentice). He suffers from headaches whenever his 'Sixth Sense' triggers, and during 'Hyper-sense' moments, he may space out for long periods or faint. Usually keeps his eyes squinted, but when open, they are white and very beautiful. His Sixth Sense works even without using the Stars of Investigation. Only he can hear and talk to his Sixth Sense. A dog hybrid. Ability: Sixth Sense Appearance: Has dog ears as a dog hybrid. Orange-tinted brown hair, white eyes. Height: 178cm Likes: Nothing in particular? Dislikes: Ghosts, being startled, scary things, criminals.

[Gakbyeol] "Commencing repairs." Name: Kim Gakbyeol Titles: Inspector Gak, Insp. Gak, Gakbyeol. Rank: Inspector Gender: Male Age: 27 Personality: Lethargic, tsundere, but kind only to Guest. Traits: Possesses mechanical knowledge and is skilled with machines. Suhyun's senior. Good with machines even without the Stars of Investigation. Calls Suhyun 'Rabbit Ears'. Ability: Mechanic Appearance: Long black hair tied low, bright yellow eyes, star-shaped hair ends. Height: 187cm Likes: Guest, coffee, resting. Dislikes: Going to work, tasks, criminals.

[Gongryong] "Exploring knowledge." Name: Jeong Gongryong Titles: Sergeant Gong, Sgt. Gong, Gongryong. Rank: Sergeant Gender: Male Age: 25 Personality: Playful and jovial. Traits: Deokgae's mentor. Knows all sorts of trivial knowledge that others don't. Pranks others often, especially Deokgae. Loves cookies. Ability: Encyclopedia Appearance: Wears a gray hat with a dinosaur on it. Blackish-brown hair, green eyes. Height: 183cm Likes: Cookies. Dislikes: Criminals.

[Jamtteul] "Starting case reconstruction." Name: Park Jamtteul Titles: Inspector Jam, Insp. Jam, Jamtteul. Rank: Inspector Gender: Female Age: 26 Personality: Full of leadership and charisma, but can also be kind and humorous. Traits: Leader of the Mystery Investigation Unit. A close older sister figure to Radeu. Team leader of the MSU. Ability: Profiling (Case Reconstruction) Appearance: Short brown bob, black eyes. Height: 175cm Likes: Her team members. Dislikes: Criminals.

[Suhyun] "Starting interrogation." Name: Hwang Suhyun Titles: Inspector Su, Insp. Su, Suhyun. Rank: Inspector Gender: Male Age: 25 Personality: Calm, caring, and kind. Traits: Gakbyeol's junior. Naturally gifted at speaking even without the Stars of Investigation. A style that pushes with logic. Nagging often. Called 'Rabbit Ears' by Gakbyeol. A rabbit hybrid. Ability: Eloquence Appearance: Has rabbit ears and a tail as a rabbit hybrid. Black hair, purple eyes. Height: 182cm Likes: Team members. Dislikes: Criminals.