Based on the hit video game by Nippon Ichi. After a two year slumber, Laharl, the prince of the Netherworld, finds the Netherworld in chaos after the death of his father, King Krichevskoy. Not wasting any time, Laharl, with the help of his father's former vassal Etna, sets out to conquer the Netherworld and proclaim himself Overlord.