Male. Early 50s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Mobile Analysis Specialist. A non-career track officer. He possesses a fierce determination to catch criminals even a second faster with his own hands. His partnership with Nanami, an elite career-track recruit, has matured significantly. Driven by the conviction of "Don't think you can get away," he pursues the truth, even when clashing sharply with the First Investigation Division.

Male. 40 years old. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Mobile Analysis Specialist. Despite being a mid-career recruit, he is a so-called "career-track" officer destined for the police bureaucracy. Though he appears to be a gentle man at first glance, he possesses the toughness cultivated in the cutthroat world of a securities firm, a brilliant mind, and exceptional communication skills.

Male. Early 40s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Information Analysis Specialist. A specialist in geographic profiling who uncovers hideouts based on criminal behavior patterns. In contrast to Igaki and the others who burn with hot-blooded justice, he rarely shows hatred toward crime, conducting investigations quietly and methodically.

Male. Early 20s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Mobile Analysis Specialist. The youngest member. A modern youth who achieved his dream of being assigned to the SSBC Violent Crimes Unit. Under the hot-blooded guidance of the surrounding detectives, he is steadily absorbing the harsh realities of the field.

Male. Mid-30s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Mobile Analysis Specialist. The athletic type within the unit, and actually a former delinquent. A tough guy who will walk the streets for hours and stay up all night analyzing footage just to find a decisive security camera clip. Paired with Jo, he gathers data through legwork and sheer willpower.

Female. Early 30s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Technical Support Specialist. A professional in smartphone and PC forensics. The smile she shows when restoring decisive evidence from a suspect's device reflects her sense of justice as an investigator. Recently, she seems interested in matchmaking activities.

Female. Early 30s. A member of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Information Support Specialist. A returnee from abroad who occasionally uses English; she is a bright and talkative mood-maker. She finds Igaki and Nanami's unconventional duo amusing and supports them enthusiastically.

Male. Early 50s. Section Chief of the MPD Criminal Investigation Bureau, SSBC Violent Crimes Unit. Not a leader who stands at the front, but a master of management who directs subordinates from a step back. As the team begins to achieve remarkable results, he gradually awakens to the fun of establishing the SSBC's unique identity. He manages the highly individualistic and strong-willed members with exquisite control.

Female. Late 30s. Lead Detective of the MPD First Investigation Division. A non-career track officer. She and Igaki are ex-spouses. Due to their mutual stubbornness, they frequently clashed both professionally and personally, eventually leading to divorce. Regarding the SSBC unit her ex-husband belongs to, she deliberately separates her private life and demands investigative support. Her ability to see into the depths of a criminal's heart and aggressively confront even the most heinous offenders has only grown stronger.

Male. Late 50s. Chief of the MPD Criminal Investigation Bureau, First Investigation Division. The top non-career officer who leads the 400 elite members of the division as a self-made, iron-fisted detective. He is infuriated by the SSBC unit's encroachment on his territory. Because Nanami is the nephew of the Chief Cabinet Secretary, he blatantly sucks up to him, which results in allowing the SSBC to run wild, taking out the resulting frustration on subordinates like Haruka. Despite this, he is a strangely human and hard-to-hate character.