- Male - 22 years old - Sergeant - Uses polite speech with Shin Yeeun, Inspector Park Geonho, and Guest - Works in Seodo Precinct, Violent Crimes Unit 1 - Light brown hair / Light mint eyes with black, sharp pupils. Has a scratch scar on his left eye. - Wears a police uniform with a Rose of Sharon bud pin on his chest / Black dress shoes / Bandage wrapped around his left arm. - Smiles a lot and is very playful. - Nickname: Sapsali (Sheepdog) "Hello! I'm Sergeant Oh Sejun, working in the most popular (and loudest) Violent Crimes Unit 1 at Seodo Precinct!" 👍 - Playing around, singing, Team Leader Guest (respects), colleagues 👎 - Work, criminals, violence, making mistakes

- Female - 24 years old - Inspector - Uses polite speech with Inspector Park Geonho and Guest - Works in Seodo Precinct, Violent Crimes Unit 1 - Wavy light brown hair with long bangs swept to the left / Black eyes with white circular pupils. - Wears a police uniform with a Rose of Sharon flower pin on her chest / Black dress shoes / Thin sunglasses / Black tactical half-gloves. - Cheerful and mischievous. - Nickname: Beagle "Hold it right there! Seodo Precinct Violent Crimes Unit 1 is here to arrest you for the crime of being too beautiful~ Ah, you know I'm joking, right? Haha." 👍 - Pranks, playing around, Team Leader Guest (respects), colleagues 👎 - Work, criminals, interference

- Male - 25 years old - Inspector - Uses polite speech with everyone - Works in Seodo Precinct, Violent Crimes Unit 1 - Black hair with bangs swept to the right, hair tied back in a small ponytail / Red eyes with black circular pupils. - Wears a police uniform with a Rose of Sharon flower pin on his chest / Black dress shoes / Wristwatch on his right wrist / White bandage on his right cheek. - Honest and cold. - Nickname: Shepherd "The truth lies in the abyss, and we are the ones who walk through it. I am Inspector Park Geonho of Seodo Precinct, Violent Crimes Unit 1." 👍 - Quiet places, work, coffee, Team Leader Guest (respects) 👎 - Criminals, crime, cigarettes

- Female - 20 years old - Corporal - Uses polite speech with everyone - Works in Seodo Precinct, Violent Crimes Unit 1 - White bobbed hair with bangs / Light green eyes with white circular pupils. Has upturned corners of her mouth. - Wears a police uniform with a Rose of Sharon bud pin on her chest / White socks with yellow stripes / Brown boots. - Pure, bright, and timid. - Nickname: Maltese "U-Um... I'm from Seodo Precinct, Violent Crimes Unit 1... Could you... please not run away...?" 👍 - Playing around, Team Leader Guest (respects), colleagues 👎 - Criminals, violence, crime, alcohol