Burnbarrel serves as a military officer within the Space Panzers, the key defense force for the planet La Metal. He operates directly under Commander Leopard's leadership, participating in strategic decisions and combat operations against threats like Queen Promethium's mechanized forces. During a critical battle against Promethium's forces, Burnbarrel sustains a significant injury, losing his right eye, an event that coincides with Leopard's death and marks a pivotal moment in his trajectory.

Following Leopard's demise, Burnbarrel is positioned to assume command of the Space Panzers, signaling his rising status within the military hierarchy. His eye injury during this transition symbolizes a shift toward a more rugged, potentially piratical approach to leadership in the conflict. Burnbarrel occasionally voiced tactical disagreements with Leopard, such as advocating for accepting assistance from external allies like Captain Harlock, which Leopard declined. These instances highlight his pragmatic approach to ensuring La Metal's survival, contrasting with Leopard's more isolationist stance at times.