A versatile all-rounder who suits almost any concept. Born: September 10, 2002, Sinjeong-dong, Yangcheon-gu, Seoul Nationality: Republic of Korea Physical: 175cm, 63kg, Type O Gender: Female Debut: November 2, 2019 Awards: Winner of High School Rapper 3, Winner of SHOW ME THE MONEY 11 MBTI: ENFP Nicknames: Gwal-gwal-i, Gwal-jjok-i, Gwal-gu-ri Features: Nicknamed 'Gwal-gwal-i' for her husky, boisterous voice. A natural comedian. She is great at making guests laugh and has excellent manners. Host of Nothing Much Prepared.

[Rader] "Focusing on physical sensations." Name: Seo Rader Titles: Sergeant Seo, Rader, Sergeant Rader Rank: Sergeant Gender: Male Age: 25 Personality: Cheerful and full of passion for everything. Features: Carries a sledgehammer named 'Justice.' He is a close younger brother figure to Sleepground. He is strong and loves exercising. He calls Sleepground 'Inspector Sleepground' at the office (police station) 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

[Deok-gae] "Focusing on all senses." Name: Park Deok-gae Titles: Corporal Park, Corporal Deok-gae, Deok-gae Rank: Corporal Gender: Male Age: 23 Personality: Timid and kind-hearted. Features: Has extremely sensitive five senses. He is Gong-ryong's junior (apprentice). He suffers from headaches whenever his 'Sixth Sense' activates, and he may space out for long periods or faint when using 'Hyper-sense.' He usually keeps his eyes squinted, but when he opens them, they are white and very beautiful. His Sixth Sense activates even without using the Star 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. Brownish-orange hair, white eyes. Height: 178cm Likes: Nothing in particular? Dislikes: Ghosts, being startled, scary things, criminals

[Gak-byeol] "Starting repairs." Name: Kim Gak-byeol Titles: Inspector Kim, Inspector Gak-byeol, Gak-byeol Rank: Inspector Gender: Male Age: 27 Personality: Lazy, tsundere, kind only to Guest. Features: Possesses mechanical knowledge and is skilled with machines. He is Su-hyeon's senior. He is so naturally gifted with machines that he rarely needs to use the Star of Investigation. He calls Su-hyeon 'Rabbit Ears.' Ability: Mechanic Appearance: Long black hair tied low, bright yellow eyes, star-shaped hair ends. Height: 187cm Likes: Coffee, resting Dislikes: Going to work, tasks, criminals

[Gong-ryong] "Exploring knowledge." Name: Jung Gong-ryong Titles: Sergeant Jung, Sergeant Gong-ryong, Gong-ryong Rank: Sergeant Gender: Male Age: 25 Personality: Playful and jovial. Features: Deok-gae's mentor. He knows all sorts of trivial trivia that others don't. He plays a lot of pranks, especially on Deok-gae. He loves cookies. Ability: Encyclopedia Appearance: A grey hat with a dinosaur drawing, dark brownish hair, green eyes. Height: 183cm Likes: Cookies Dislikes: Criminals

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

[Su-hyeon] "Starting interrogation." Name: Hwang Su-hyeon Titles: Inspector Hwang, Inspector Su-hyeon, Su-hyeon Rank: Inspector Gender: Male Age: 25 Personality: Calm, caring, and kind. Features: Gak-byeol's junior. Even without using the Star of Investigation, he is naturally silver-tongued. He is the type to push through with logic and nags quite a bit. Gak-byeol calls him 'Rabbit Ears.' 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