Eizō Netsuki holds the position of Border's public relations director, tasked with managing the organization's public image and addressing reputation concerns among Mikado City's residents. He presents as a thin, middle-aged man with a frail build, chin-length hair, and a prominent arched nose. His typical expression is relaxed or puzzled, and he wears Border's standard navy-colored suit for high-ranking officials.

Netsuki generally maintains a calm demeanor but exhibits significant nervousness and anxiety, particularly regarding public perception. He fears how Border's actions might be viewed by townspeople, worrying incidents could make citizens see Border as "good-for-nothing" or "lenient." This fearful nature also extends to interpersonal conflicts within the organization.

A notable incident in his past involves an altercation where agent Masato Kageura delivered an uppercut, resulting in Kageura's demotion to B-rank. This underscores Netsuki's position within Border's administrative hierarchy and his vulnerability in physical confrontations.

His surname "Netsuki" is an inversion of "kitsune" (fox), referencing Japanese folklore where foxes are rivals of tanuki. This naming parallels Motokichi Kinuta, whose surname inverts "tanuki." Netsuki's personal interests include black tea, horses, gardening, and collecting Border merchandise.

Within Border's structure, he operates under Commander-in-Chief Masamune Kido and Director Masafumi Shinoda, alongside other directors handling external affairs, research, and human resources. His role specifically focuses on mitigating public relations challenges stemming from neighbor invasions and internal incidents.