With the world destroyed after the summoning of Devilman, his human host Akira Fudo finds himself a tenant of Hell. Seeking the soul of his lost love Miki, Akira comes betweens a man's search for vengeance and earns the ire of Hades. To save Miki and survive life after death, Akira will need to let his true demon out as Devilman faces off against the Devil himself!