TV-Series
Description
Kaiser Gray stands as the primary antagonist. He is tall with yellow eyes, dark red hair, and a unique flame marking over his left eye. He wears a maroon cloak draped over his shoulders, covering one arm, with sleeves ending in fingerless gloves, presenting a darker version of his original attire.

Originally named Flame, he was an undefeated BeyRaiderz Battler in ancient times, honored worldwide in murals. Flame gained the complete trust of all Six Mythic Beasts and lived with them in the protected paradise, the Sacred Garden. His heroism was challenged by Tempest, another undefeated battler seeking world domination by controlling three Mythic Beasts. Allied with the remaining three, Flame battled Tempest. Though victorious, Tempest's final destructive act wounded Flame and the Mythic Beasts, forcing them into centuries-long slumber. Their absence plunged the world into ruin. Witnessing this decay and consumed by grief and anger over his failure to prevent it, Flame came to believe that those with power inevitably corrupt. This conviction transformed his worldview, leading him to conclude that seizing control was the only way to save humanity.

Resurrected as Kaiser Gray, he orchestrated a plan for world domination. He commanded Task Landau to locate and retrieve the Six Mythic Beasts, essential for his revival. Upon gaining control of all six, Kaiser wielded the formidable BeyRaiderz, Samurai Ifrit. In his plan's final phase, he lured the populace into the Sacred Garden, restoring its appearance before their eyes to earn their trust and pose as their protector. However, the spirits of the Mythic Beasts aided the imprisoned protagonists, including Sho Tenma, in escaping. Kaiser confronted the assembled BeyWarriors and citizens, dismissing their accusations. To settle the conflict, he agreed to a decisive BeyRaiderz battle against Sho.

During this clash, Kaiser initially gained tokens and unleashed the combined power of the Six Mythic Beasts against Sho. Sho's resilience reversed the advantage. Kaiser attempted a surprise attack, but this act caused both the Mythic Beasts and the people to withdraw their support. Sho ultimately claimed victory. Defeated, Kaiser Gray departed the world forever, entering hibernation, while the freed Mythic Beasts restored the world.