Kaiser Gray, once revered as the legendary Flame, stood as an ancient champion whose mastery of BeyRaiderz and unbreakable bond with the Six Mythic Beasts secured his place beside them in the Sacred Garden. His legacy as a guardian endured through centuries of murals and tales. Yet his rivalry with Tempest—a conqueror who twisted three Mythic Beasts to his will—culminated in a clash of titans. Though Flame emerged victorious, Tempest’s final act unleashed devastation, crippling Flame and plunging the Beasts into dormancy. As the world withered without its defenders, Flame’s hope curdled into bitter resolve, convinced that power’s corruption was inevitable.

Reborn as Kaiser Gray, his visage darkened with shadowed armor and a maroon cloak, his fingerless gloves and fiery sigil over one eye echoing his past. Now believing only dominion could purge corruption, he schemed to reclaim the slumbering Mythic Beasts through proxies like Task Landau, wielding his BeyRaiderz, Samurai Ifrit, to harness their collective might.

As Kaiser, he maneuvered allies and enemies alike, confronting Sho Tenma’s comrades and unveiling his true identity to Armes Navy with a seventh BeyRaiderz that commanded the Beasts. His grand design lured humanity into the reborn Sacred Garden, promising sanctuary while masking his iron grip. Resistance erupted as Sho and the awakened Beasts challenged him. In the ensuing duel, Kaiser’s cunning—token-based stratagems and hidden assaults—nearly secured victory. Yet the people’s defiance, the Beasts’ rebellion, and Sho’s unyielding spirit shattered his ambitions.

Defeated, Kaiser retreated into hibernation. The liberated Beasts reignited the world’s healing, leaving his tale as a cautionary echo of nobility warped by despair—a fallen sentinel whose grasp for control seeded both ruin and renewal.