While patrolling a restricted zone, Agent MU-0213 is ordered to track down and execute a deserter. During a deadly confrontation, he discovers that his opponent is the fugitive agent MU-1225, known as Tristan. Cornered and seemingly doomed, MU-0213 is spared when Tristan asks him a single, unexpected question: "Do you have a name?" The question awakens fragmented memories, forcing MU-0213 to question everything he believes about himself. But what is Tristan really after, and why would a skilled sniper spare his enemy when he had the perfect chance to kill him?