In Zankyou no Terror, the word "VON" is painted in red after a terrorist attack on a nuclear facility in Japan, leaving the government shaken and the police scrambling for a way to respond. For months, the public has no clear answer, until a strange video appears online and two teenage boys calling themselves "Sphinx" openly challenge the authorities. From that point on, the threat is no longer hidden: they promise destruction and mayhem across Tokyo, and every new warning pushes the city closer to panic.
As the investigation stalls, Detective Kenjirou Shibazaki is pulled into the center of the case, forced to piece together clues while the police struggle to keep pace with a crisis that seems designed to stay one step ahead of them. Behind the masks, Zankyou no Terror follows Nine and Twelve, the boys behind Sphinx, who should not exist yet move through a world of deception and secrets with unnerving precision. The story builds around their attacks, their silence, and the tragic truth they are trying to bury, turning Tokyo into the stage for a tense confrontation between fear, authority, and two lives shaped by something far more personal than simple destruction.
