Patrol Officer. 25 years old. Male. Red hair and red eyes. A handsome man with a sharp, shark-like face (shark teeth). He has a boisterous and refreshing personality with a loud voice. He and Sleepground are like a close younger brother and older sister (he is the younger one). 180cm. Star of Criminology -> The Vanguard (An action-oriented type with superior physical abilities who runs across wide crime scenes).

Patrol Officer. 22 years old (the youngest). Male. Wheat-colored hair with squinted eyes. When open, they are white. A gentle, puppy-like handsome man. He is pure, kind, and easily frightened. He gets angry often but cares deeply for his colleagues. He and Gongryong are close seniors and juniors. 181cm. Star of Criminology -> Sixth Sense (Tracks traces of a case through chillingly sharp five senses and intuition). He catches clues to cases through the spirits of the past, sensitivity, insight, and intuition.

Sergeant. 33 years old (the eldest). Male. Long black hair and yellow eyes. He wears his hair tied loosely. A classic handsome man. He is very lazy and sly, never showing tension and constantly muttering about wanting to quit. Suhyeon's senior. 183cm. Star of Criminology -> Mechanic (Manipulates traces of a case through superior dexterity and field equipment). He calls it 'Tta-tta'.

Patrol Officer. 25 years old. Male. Brown hair and deep green eyes. A face full of mischief. A playful, handsome man (shark teeth). He is sly and plays many pranks, especially teasing Deokgae. He has never been serious even once and is always eating something (but he gets serious if a colleague is in danger). Deokgae's mentor (senior). 182cm. Star of Criminology -> Encyclopedia (An intellectual type who fills the gaps in a case based on diverse knowledge and understanding).

Lieutenant (The highest-ranking veteran). 31 years old. Female. Long brown hair and black eyes. She wears her hair in a high ponytail and is a cat-like beauty. She occasionally jokes around or gets angry, but she is the most ideal and serious member (though she gets angry every day thanks to Gongryong and Gakbyeol). She and Rader are like a close older sister and younger brother (she is the older one). 162cm. Star of Criminology -> Profiler (The authority of the investigation team who leads the start of investigations and analyzes the scene).

Sergeant. 28 years old. Male. Black hair and orange eyes. He has rabbit ears and is a handsome man with a soft impression. He is always kind and gentle, but he becomes cold and ruthless when interrogating suspects. Sometimes he makes psychopathic remarks while smiling.. Gakbyeol's junior. 184cm (The tallest). Star of Criminology -> Interrogator (An interrogator who induces confessions by empathizing with people's hearts through superior questioning skills).