Kurt Buster, a devoted member of the Psycho Armor Corps, channels his father’s military legacy into fervent enthusiasm for service, joining the team to forge his own path despite his nascent psychic skills. His unwavering camaraderie masks a quiet vulnerability, defined by a steadfast commitment to others’ safety—especially Lisa, whom he quietly adores without reciprocation.

Kurt’s journey reaches its apex during Queen Melia’s assault, where he intercepts a lethal strike from her surveillance drone to shield Lisa. Mortally wounded, he reveals his concealed affection in his final breaths, becoming the group’s inaugural loss. His death fractures team morale, haunting Hans and hardening his resolve in later conflicts.

As pilot of the Psycho Armor Raid, Kurt wields laser armaments until his demise in episode 8, after which Hans inherits the mecha, repurposing it in ongoing battles. The emotional aftershocks of Kurt’s sacrifice linger, particularly for Lisa, who processes his delayed confession amid the chaos. His fate intertwines with the series’ exploration of sacrifice’s weight and loyalty’s cost, anchoring its thematic core in personal consequence.