Kozo Inuzuka occupies the role of Japan’s prime minister in the narrative, tasked with navigating governmental strategies to address the emergence of the anisotropic entity Yaha-kui zaShunina and the integration of disruptive advanced technologies. Functioning within established political frameworks, he confronts structural and diplomatic challenges arising from these events, though his personal history and inner motivations remain unexplored.

His surname, merging the characters for "dog" and "control" or "bundle," pairs with a given name meaning "structure" or "construction"—linguistic echoes of his duty to manage complex governance and policy. Documented records lack elaboration on his background, character evolution, or extended media appearances. Alive and active within the narrative, his decisions and actions remain tethered to his administrative responsibilities, with no defined individual arcs or personal relationships shaping his role beyond structural governance.