Aura Battler Dunbine(1983)

Aura Battler Dunbine is a mecha anime series that follows Sho Zama, a Japanese motocross racer transported to the magical realm of Byston Well after a crash. There, he's conscripted by the warlord Lord Drake Luft to pilot Aura Battlers—hybrid machines blending Byston Well sorcery with Earth technology. As Sho fights in escalating battles, he encounters Marvel, a fellow Earth native who reveals Luft's true ambitions. Caught between two worlds, Sho must navigate conflicting loyalties while uncovering the dark purpose behind his recruitment. The series blends fantasy worldbuilding with mecha action, exploring themes of manipulation, resistance, and the cost of war.