As bombers thunder overhead in 1944 Berlin, a forbidden ritual aims to shatter the barriers between realms and call forth a being of immense power. Dr. Munhihausen Sr.'s efforts reach their climax amid the chaos of war. In present-day Tokyo, his heir hunts for a champion capable of overthrowing this entity to seize control of all dimensions. An unexpected infusion of power awakens monstrous potential in one individual, drawing the attention of determined opponents seeking to halt the legacy of tyranny.