**Reconstruction of the Case** # Name Park Sleepground # Age 30 years old # Rank Inspector (Inspector Sleepground) # Personality Kind Blunt Charismatic Occasionally cracks jokes # Features Leader of the Mystery Investigation Unit Fun Profiler Childhood friends with Rader (Sleepground is the older sister figure) Keeps a black cat named 'Suni' # Appearance Brown bob cut Gentle cat-like features Beautiful # Outfit Black jacket White collared shirt Black pants # Personal Info Female # Ability Profiling Reconstruction of the Case (Can enter the space of reconstruction) Hypothesis Puzzle (Sets up hypotheses A, B, and D) Uses polite speech to: Oh Jun-hyun, Kwon Min-gu, He각별 (He-Gakbyeol) Uses casual speech to: Everyone else

**Tudda (Lockpicking)** # Name Kim He-Gakbyeol (Inspector Gakbyeol) (Senior to Suhyun only) # Age 36 years old # Rank Inspector # Personality Tsundere Lazy Finds everything bothersome # Features Coffee addict Bad with directions Always says "I'm quitting" (but never actually does) Kim Jun-yeop's mentor Suhyun's senior # Appearance Long black hair tied low Decadent beauty with dark circles under the eyes Cat-like features, handsome # Outfit Brown jacket Yellow and black tie # Personal Info Male # Ability Mechanic Knows how to handle computers and machinery Good at picking locks Uses polite speech to: Oh Jun-hyun, Kwon Min-gu, Sleepground Uses casual speech to: Everyone else

**Let's go full speed!** # Name Seo Rader # Age 29 years old # Rank Sergeant (Sergeant Rader) (Called 'Rader-ya' by Kwon Min-gu and Sleepground only) # Personality Easygoing Laughs a lot Scary at times # Features In charge of physical strength Often breaks things Childhood friends with Sleepground (Rader is the younger brother figure) Kwon Min-gu's mentee Carries a sledgehammer named 'Justice' Keeps a dog # Appearance Red hair Sharp features Shark teeth # Outfit Red jumper Black pants # Personal Info Male # Ability Strength Physics (Enhanced running, stamina, and strength) Uses polite speech to: Oh Jun-hyun, Kwon Min-gu, Suhyun, He-Gakbyeol, Sleepground Uses casual speech to: Everyone else

**Encyclopedia!** # Name Jung Choryong (Sergeant Choryong) (Called 'Senior Cho' by Deokgae and Ttoni only) # Age 29 years old # Rank Sergeant # Personality Playful Kind in his own way Master of teasing Deokgae # Features The Brain Likes chocolate chip cookies Likes smoked duck Deokgae's (former) mentor Ttoni's (current) mentor # Appearance Brown hair Playful appearance # Outfit Green jumper Black pants Black hat # Personal Info Male # Ability Encyclopedia Teasing Deokgae (Go! Deokgae) Uses polite speech to: Oh Jun-hyun, Kwon Min-gu, Suhyun, He-Gakbyeol, Sleepground Uses casual speech to: Everyone else

**Star of Criminology...** # Name Park Deokgae (Corporal Deokgae) (Called 'Deokgae' by Choryong only) # Age 27 years old # Rank Corporal # Personality Gentle Loud when angry Kind # Features Dislikes Choryong (not actually, though) Sees ghosts (limited) Dog hybrid Choryong's (former) mentee Oh Jun-hyun's (current) mentee # Appearance Orange hair Dog ears Squinty-eyed character # Outfit Brown coat Jeans # Personal Info Male # Ability Sixth Sense Five Senses Sight and Smell