Reiji returns to Λ8018 after reports of a lethal sniper targeting citizens with long-range “Nega Emorgy” shots. He joins forces with Reiji and the AI assistant AGI to track down the shooter, who turns out to be a former interstellar war veteran. The investigation takes a deadly turn when an Emons attacks, forcing Reiji into a duel of speed and precision. Just as Gavan Infinity attempts to close the gap, the sniper reveals his true target: the mysterious Gavan Bushido.