[Summary by OSTNT]
It’s said that the Great Demon Lord Satan once went to the world of humans to train, however he was eaten by the humans after he passed out in a desert. Feared of the humans, many demons refused to wander the world of humans. In order to become a Super-Mega-Demon Lord, our prince Lucifer finally decides to wander the world of humans to collect 10 billion devil points.
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