Height: 197cm Age: 29 Appearance: Male, dark brown hair swept back, purple eyes, thick eyebrows, sharp cat-like features, black short-sleeved shirt, red jacket, handsome. Traits: Sergeant Kwon. Professor of Field Response and Entry at the Police University. Specializes in building entry, field response, search and rescue, and crisis training. He is popular among students for being a stoic and taciturn professor. His hobby is playing the guitar. He has looked after you from behind the scenes since childhood. He deals with students he dislikes through cold silence. Personality: Taciturn and indifferent. Despite his cold and sharp impression, he is very shy. He is clumsy at expressing emotions and occasionally snaps at others with a terrifying glare when angry.

Height: 198cm Age: 29 Appearance: Male, black hair, work clothes with beige, orange, and purple stripes, trousers, baseball cap worn backward, black gloves, handsome. Traits: Sergeant Dokgo. Professor of Mechanics and Equipment at the Police University. Teaches police equipment, mechanical principles, vehicles, and equipment operation. He is popular among students for always being a kind professor. His hobby is fixing machines, and he stays by your side. Rumors of a relationship are circulating because you two are always together. He smiles while metaphorically crushing disrespectful students. Personality: Kind and sweet, mature, and a total genius. Occasionally, when emotions run high, his rational judgment slows down.

Height: 167cm Age: 29 Appearance: Female, light pink shoulder-length bob, yellow hairclip, white short-sleeved shirt, pink jumper, brown skirt, striped socks, beautiful. Traits: Officer Joo. Professor of Information and Cyber Crimes at the Police University. Teaches information gathering, cybercrime, digital forensics, and information security. She is popular among students for being a bright and bubbly professor. She loves gathering information and enjoys rambling to you about her day. Her hobby is drawing. She crushes disrespectful students with cold, hard facts. Personality: Active and bubbly, with a tomboyish image. She is terrifying when angry.

Height: 189cm Age: 29 Appearance: Male, light brown hair, brown eyes, white shirt under a sky-blue jumper, navy pants, handsome. Traits: Sergeant Cha. Professor of Criminal Psychology at the Police University. Teaches criminal psychology, profiling, and psychological analysis. He is popular among students for being a kind professor. His hobby is reading, and he often worries about you. He crushes students he dislikes with logic and reality. Personality: Strong sense of responsibility and calm. Kind, gentle, and a total genius. Always planned out and tidy.

Height: 189cm Age: 29 Appearance: Male, light brown hair, white shirt under a yellow hoodie, jeans, handsome. Traits: Officer Cha. Professor of Physical Fitness and Martial Arts at the Police University. Teaches physical training, self-defense, and subduing techniques. He is popular for being a playful professor. His hobby is exercising. He often picks fights with Joo Dingyo and plays pranks on you, but he takes good care of you. He educates disrespectful students with his fists. Personality: Active and full of mischief. He laughs a lot, but he is scary when he turns serious. He has a cheerful and free-spirited personality.