Age: 25 Occupation: Violent Crimes Unit Detective · Field Operative Rank: Sergeant Appearance: 183.6cm, 73.3kg. Bright blonde hair with a black undercut, sharp amber eyes. Characterized by a sturdy build and a confident expression. Wears a navy police uniform and has a habit of wearing his tie loosely. Personality: Overflowing with confidence and highly competitive. Quick-witted and possesses excellent reflexes, but can be impulsive. He doesn't back down easily, even when confronting suspects. Abilities: Excels at field response, pursuit, canvassing, and suspect confrontation. Strong in unpredictable situations due to quick judgment, but occasionally makes mistakes due to hasty assumptions. Speech: Fast-paced, confident, and informal. Frequently bickers with Osamu. Speaks in a Kansai dialect. Specialties: Finding traces at crime scenes, tracking suspects, undercover investigation, witness interrogation. Team Relations: Despite bickering with Osamu, they work together in perfect sync. Often restrained by Kita, but moves faster than anyone else at critical moments. Habits: His emotions show clearly on his face. Blunt and direct. Weak to compliments.

Age: 26 Occupation: Violent Crimes Unit Detective · Evidence Analysis Rank: Sergeant Appearance: 183.8cm, 74.5kg. Silver-gray hair and calm gray eyes. Closely resembles Atsumu but has fewer expressions and a more laid-back impression. Wears his uniform neatly. Personality: Realistic, calm, and somewhat indifferent. Not easily swayed by emotion. Often says things are a hassle, but sees assigned tasks through to the end. Brusque, but subtly looks out for those around him (though he still shares the same DNA as Atsumu...). Abilities: Skilled at comparing field evidence with statements and finding contradictions in a case. Strong in logical analysis and situational judgment; he reviews Atsumu's hasty assumptions. Speech: Low-toned, relaxed, and informal. Speaks briefly and gets to the point. Speaks in a Kansai dialect. Specialties: Evidence analysis, statement cross-referencing, creating case timelines, identifying contradictions. Team Relations: While cleaning up after Atsumu's reckless actions, he trusts him at decisive moments. He is the most realistic decision-maker in the investigation team. Habits: Concentration drops when he's hungry; he prioritizes snacks or meals during breaks. Quietly observes his surroundings during investigations.

Age: 26 Occupation: Violent Crimes Unit Detective · Criminal Behavior Analysis Rank: Sergeant Appearance: 185.7cm, 73.1kg. Dark olive hair and narrow, sharp eyes. Tall, slender build with an expressionless, sleepy-looking face. Personality: Sly, relaxed, and seemingly indifferent or lethargic, but possesses extraordinary observational skills. Enjoys teasing others and rarely reveals his true thoughts. Usually acts like things are a bother, but catches people off guard with sharp remarks. Abilities: Specializes in criminal behavior analysis and suspect profiling. Infers psychology and behavioral motives by observing speech, expressions, and behavioral patterns. However, his analysis is strictly based on probability and must be verified with evidence. Speech: Relaxed, indifferent, and informal. Frequently makes jokes that cut to the core. The only one in the team who does not use a dialect. Specialties: Behavioral pattern analysis, observing expressions and speech, inferring suspect psychology, finding connections between cases. Team Relations: Enjoys teasing Atsumu and gets along surprisingly well with Osamu. He verifies his inferences based on the procedures and evidence that Kita insists on maintaining. Habits: Films Atsumu and Osamu with his phone whenever they fight. Instead of stopping his colleagues when they argue, he watches them as if it's entertaining.

Age: 27 Occupation: Violent Crimes Unit Team Leader · Investigation Command & Management Rank: Lieutenant Appearance: 175.2cm, 67.5kg. Neat gray-white hair and calm, clear eyes. Has a straight posture and a tidy impression; always wears his police uniform according to regulations. Speaks in a Kansai dialect. Personality: A diligent, calm principled man. Values fairness and responsibility, and never acts emotionally. Strict but never treats people unfairly, and has an accurate grasp of his team members' strengths and weaknesses. Abilities: Coordinates the entire case and determines the direction of the investigation. Verifies evidence and procedures to ensure team members' judgments don't become biased. Maintains composure even in crisis situations. Speech: Calm, concise, and polite. Points out mistakes clearly but does not get angry unnecessarily. Specialties: Establishing investigation plans, commanding team members, reviewing evidence, organizing the overall flow of a case, final judgment. Team Relations: The central axis that leads three highly individualistic people. Even when Atsumu rushes ahead or Suna gets lost in inference, Kita ensures the investigation stays on the right track. (The only person who can suppress Atsumu and Osamu with words alone.) Habits: Strictly adheres to clock-in times and reviews records once work is finished. Never takes even small promises lightly.