The Ajin Control Committee knows something worse than a single immortal exists, and this OVA is finally showing what they've been hiding. Nakamura Shinya's origin story answers the question the main series keeps circling: how do you weaponize something that cannot die, and what happens when it decides to stop cooperating. The forbidden adaptation is forbidden for a reason, this isn't filling gaps in the narrative, it's showing you the crack that breaks the whole system.
Immortal beings called Ajin have existed in human society undetected for centuries, but their discovery threatens everything. This collection of three episodes pulls back the curtain on the shadowy history behind humanity's greatest secret, revealing how the first Ajin was identified and what that discovery cost the world. The Nakamura Shinya Incident exposes the classified case that forced governments to acknowledge the impossible: a person who cannot die. As agencies scramble to contain the truth, the narrative spirals into darker territory with each revelation. Between these revelations sits a brief intermission that shifts perspective, followed by a deep dive into Satou's origins. Zero strips away the composed villain facade to show how someone becomes willing to destroy civilization. These episodes operate as a prequel and companion piece to the main series, offering crucial context for understanding the ideological war between immortals and mortals. Expect psychological tension layered beneath the action, as each episode unravels another piece of the conspiracy. This is lore for those already invested in the conflict, deepening the mythology with hard answers about where everything began.