After a motocross accident, Sho Zama was pulled from Japan into the mystical world of Byston Well, where he and others from Earth were reicruited by Lord Drake Luft to pilot his newest weapons, the Aura Battlers, a combination of Byston Well magic and Earthien technology. However, in the heat of battle, Sho is approached by Marvel, a woman from Earth, who convinces him of Luft's sinister intentions.

Akira is just another normal kid in modern-day Tokyo, until an old friend of his, Ryo, shows up and turns his world upside down. Akira learns that there is an upcoming war of demons on humanity and he has just been enlisted for a major tour of duty. But the only way to fight a demon is with their power, so Akira and Ryo risk a dangerous ceremony in an attempt to create humanity's only hope: the powerful Devilman.