The Brave Fighter of Legend Da-Garn marked the first serious thematic turning point in the Brave Series. In the previous two shows, the "boy" was a supporting character, not allowed to place himself in any danger; "Da-Garn" is instead centered around an older youth, Seiji Takasugi: a "latch-key kid" from whom the robots receive orders—forcing the boy to command them in the field. The robot-possessing spirits themselves are no longer "aliens," but forces created by the planet Earth to protect itself from invaders—notably the invading aliens who are the antagonists of the piece.