The great demon Mao Dante, using the weakness of a child exposed to his demonic influence in his dreams, wakes up from a thousand-year sleep The intention of this creature survived from the ancient and forgotten civilization is to destroy all the human race. But this is not so simple: the motives of the demon are not as vicious as it would be possible to think, and they will be combined with the life of a child who hangs between nightmares and madness. Against the church hierarchy to get justice, which, as easy to guess, belongs to the Mao demon. This series did not have the end to its remake in 2002. Nagai took a lot of ideas from Mao Dante in Devilman.