Eizō Netsuki functions as Border's public relations director, overseeing the organization's media relations and public image. He appears as a thin, middle-aged man with a frail build, chin-length hair, and a distinctly arched nose. His standard attire consists of Border's navy suit for high-ranking officials, and he frequently displays either a relaxed or puzzled demeanor.

Netsuki exhibits a personality blending surface calm with underlying anxiety, particularly when Border's reputation faces potential threats. His intense focus on public perception is evident in his opposition to deploying S-Rank agent Tsukihiko Amō over image concerns. He employs strategic rumor management, exemplified by his creation of an elaborate cover story: presenting Hyuse as a high-Trion relative of executive Michael Cronin rather than denying allegations outright. This tactic aimed to preserve credibility while avoiding public distrust.

Professionally, he coordinates controlled narratives with senior agents like Azuma. During the Hyuse incident, he fabricated a multi-layered backstory involving fabricated training records and planned placement in Tamakoma First before Tamakoma Second—showcasing his method of weaving plausible alternatives to shield organizational interests.

Trivia highlights the linguistic inversion of his surname "Netsuki" from "kitsune" (fox), a playful counter to Motokichi Kinuta’s "tanuki"-inspired name. Personal interests encompass black tea appreciation, equestrian admiration, gardening, and collecting Border merchandise. He was notably struck by Masato Kageura in an uppercut incident that resulted in Kageura’s demotion to B-Rank, though context remains unspecified.