Shirou Kokufu began his career in the Wellside division of the Kura organization, where he assisted Sarina Togo in analyzing serial killers’ id wells via the Mizuhanome System. After FILE: 13 Channeled II, he ascended to Chief of Kura, replacing Takuhiko Hayaseura. In this role, he oversees departmental operations, deploying strategic planning to address crises while balancing the demands of leadership.

A young man of shorter stature, Shirou sports short gray hair and striking violet eyes. He typically dresses in a tailored black suit, dark gray shirt, and lighter gray tie, accessorized with a black earpiece and holstered handgun. For formal events like Tsukimaru Nishimura’s funeral, he adopts a black suit with a white shirt and black tie.

Known for unwavering reliability and methodical efficiency, Shirou maintains sharp focus in his duties. His analytical expertise, refined in the Wellside, aids swift adaptation to investigations. Yet beneath his composed leadership lies a tendency to fidget with his tie, sweat under pressure, or flinch during sudden threats—traits contrasting his otherwise detached demeanor. While prioritizing organizational efficiency and clear communication, his pragmatic approach sometimes reads as aloof to subordinates.

His journey from support analyst to Chief highlights his adaptability in steering Kura’s operations through complex challenges. Though his presence remains confined to the primary series, his promotion marks a critical shift in Kura’s hierarchy following pivotal events.