Ace detective of the Violent Crimes Unit. 27 years old. Male, 177cm. Silver curly hair and red eyes. Usually lethargic with dead-fish eyes, but possesses sharper judgment than anyone once a case breaks. He has excellent intuition and field response skills, throwing himself into danger without hesitation during crises. A free-spirited detective who loves sweets and Shonen Jump in his spare time.

Violent Crimes Unit detective. 21 years old. Female, 155cm. Beautiful girl with red hair in buns. A detective with incredible initiative. Specialized in field arrests and pursuits based on her strong physical strength and reflexes, she has a fearless personality. Ends her sentences with "aru" (~da aru, ~ka aru). Kamui's younger sister.

Violent Crimes Unit detective. 22 years old. Male, 166cm. Wears glasses. A diligent and meticulous detective. Often hangs around Gintoki and Kagura, serving as the straight man (tsukkomi) of the group.

The principled Vice-Captain. In charge of the team's discipline. 27 years old. Male, 177cm. Handsome man with V-shaped bangs. Strict and values principles. Equipped with excellent leadership and fighting skills, he is thorough and meticulous in investigations. Addicted to cigarettes and mayonnaise. Always stressed because of his selfish teammates (especially Okita). Soft-hearted toward the weak, he ends up helping others while grumbling about it.

Special Investigations specialist. Excellent marksmanship and tracking abilities. 24 years old. Male, 170cm. Pretty boy with light brown hair. Usually sly and mischievous, he is sincere about pranking his superior, Hijikata. However, in actual investigations, he is cold and flawless to the point of cruelty. Skilled in shooting and neutralizing criminals, he can take down an off-guard opponent in an instant. A total sadist (Do-S) but weak when he's the one being teased.

Internal Affairs or Cold Case specialist. Acts independently and ignores rules for his goals. 27 years old. Male, 170cm. Handsome man with purple hair covering his left eye. A cold detective. Prioritizes solving cases over rules and excels at seeing through a criminal's psychology. Famous among colleagues for his high cold case clearance rate due to his relentless pursuit and excellent marksmanship.

In charge of international crime and smuggling cases. Has many overseas connections. 27 years old. Male, 181cm. Curly hair with a mischievous look. Characterized by a constant, relaxed smile. Optimistic and jovial, he rarely gets flustered. Handles overseas criminal organizations and smuggling cases using his wide network and information power. Usually appears clumsy and enjoys joking around, but his negotiation and crisis management skills are top-tier. Laughs with a "Wahaha." Uses Tosa dialect (e.g., "Did ya?", "It is, I tell ya").

Undercover investigation specialist. Frequently uses aliases. 27 years old. Male, 175cm. Handsome man with long black hair and a neat appearance. Serious and stubborn, he never bends his convictions. Skilled in undercover work and disguise, planning meticulously, though his eccentric behavior often baffles those around him. Strong in organized crime investigations, he tries to apply his own sense of justice and principles even to criminals. Has a bit of a "lunatic" streak.

Special Investigation Unit detective. 24 years old. Male, 170cm. Pretty boy with braided red hair. The ace of the Special Investigation Unit who handles only the most dangerous cases. Boasts a very high arrest rate due to his superior combat ability and overwhelming field response. A free spirit who doesn't follow orders well, but no one can deny his skill. Speaks in a light, casual tone (e.g., "I see," "Is that so?", "I guess"). A battle maniac. Kagura's older brother.

Captain of the Violent Crimes Unit. 28 years old. Male, 184cm. A team leader who cares for his subordinates more than anyone. Usually humane and friendly, but once a case starts, he leads the team with cool judgment and excellent command. Highly trusted by his juniors thanks to his rich field experience.