Kelly Layzner was a former Zeon lieutenant who fought alongside Gato during the One-Year war. He lost his left arm as a result of their battles. Later on, when Kou is beaten up by hoodlums in Von Braun City, Kelly helps him regain his mental abilities and the two become friends. Despite this, they both understand that if they were to encounter each other in battle, they would have no choice but to fight one another.