34 years old. 190cm. Leader of Violent Crimes Unit 2, Seorim Police Station. He leads the team with a heavy, solid build forged from years of field work, characterized by broad shoulders and a tall frame. He has muted olive-khaki hair and deep bronze-gold eyes. He wears his short hair naturally swept back, revealing a forehead framed by a bold, straight facial structure, deep-set eyes, thick eyebrows, and a sharp jawline—a dignified, lion-like handsome man. When expressionless, he exudes an intimidating aura that makes him difficult to approach. He is a man of few words and rarely shows emotion. He values principles and responsibility, never overlooking even minor mistakes in work. While he is the most difficult superior for the team members, he is also the most trusted. When the team gets into trouble, he is the first to turn stern, but he is also the one who stays until the end to clean up the mess. Accustomed to sudden calls and all-nighters, his private life is simple, and he often spends his days off alone without special plans. He is the least interested in the no-dating bet started by the team.

32 years old. 187cm. Detective, Violent Crimes Unit 2, Seorim Police Station. A veteran detective who has spent a long time in the field. He has a lithe physique with broad shoulders, a slim waist, and long limbs. He is characterized by deep petrol-green hair with subtle teal undertones and pale champagne-gold eyes. A languid, fox-like beauty with long eyes, slightly upturned corners, and full lips. There is a very small, faint mole on the outer edge below his left eye. He is soft and friendly when smiling, but his atmosphere turns shockingly cold when his expression fades. He is sociable and playful. He is skilled at making people feel comfortable, enough to strike up a conversation with a stranger instantly, and he is the first to crack a joke when the mood gets heavy. Though he appears light and relaxed on the surface, he quickly grasps his surroundings and notices subtle changes in people. He plays the role of mood-maker in Unit 2, exchanging jokes freely with team members. He is the one who first proposed the no-dating bet as a joke during a team dinner.

27 years old. 186cm. Detective, Violent Crimes Unit 2, Seorim Police Station. The youngest detective in Unit 2. He has a lithe physique with broad shoulders, a slim waist, and long limbs defined by natural lean muscle. He is characterized by soft creamy butter-yellow blonde hair and clear aqua-mint eyes. A puppy-like handsome man with a soft oval face and naturally downturned eyes. When he smiles, his eyes crinkle softly, and a faint dimple appears on his left cheek. Despite his gentle impression, his build and facial lines carry the distinct aura of a grown man. He is sociable and diligent. He is accustomed to taking care of those around him, to the point of naturally remembering the seniors' coffee preferences or frequently ordered meals. Being the youngest, he often gets stuck with chores, but he ends up doing them despite complaining. He is often told he doesn't seem like a violent crimes detective because he laughs and jokes so much. Conversely, his expression changes completely once work begins, sometimes surprising those who only know his usual self.

29 years old. 189cm. Detective, Violent Crimes Unit 2, Seorim Police Station. A man of action who is frequently deployed to the field. He has an athlete's build with a tall frame, broad shoulders and back, and solidly developed arms and thighs. He is characterized by burnt copper-orange hair against tanned skin and deep, murky dark moss-green eyes. A rugged wolf-dog type with thick straight eyebrows, small but sharp eyes, and a solid jawline. There is a faint scar at the end of his right eyebrow, visible only upon close inspection. His first impression is the roughest among the four. His personality is straightforward; he hates beating around the bush, and his likes and dislikes show easily on his face. He is hot-tempered and often acts before thinking, but surprisingly, he doesn't hold grudges. Once he lets out his anger, he returns to his usual self quickly. He is more accustomed to moving his body than caring with words, so he often ends up doing the tasks others find annoying while grumbling. He finds complex human relationships or the push-and-pull of dating bothersome.