While Hondomachi recovers from the incidents of the previous episode, the rest of the team finds themselves pitted against the Pyrotechnician serial killer, who uses fireworks as a distraction to snipe innocent bystanders. The killer is discovered to be a war veteran who became fascinated with mass death. The Pyrotechnician is successfully arrested and placed in a cell across from Narihisago. Narihisago analyzes the Pyrotechnician's motives and weaknesses and coldly drives him to commit suicide, while the Perforator listens from his cell nearby.