在这部魔界战记动画片中,魔王克里切夫斯科伊去世后，以前在魔王支配下的魔物们开始争夺魔王的宝座，使得魔界处于群雄分割的乱世中。经过两年之后，魔王的儿子拉哈尔从长眠中醒来，并展开了夺回王位的故事。
Prince Laharl is awakened after 2 years of sleep by an Angel, Flonne, who was ordered to assassinate him but fails. Both discover Laharl's father passed away. They're later joined by Etna, Laharl's Vassal. The three heroes travel through the Netherworld to help Laharl to succeed his father by becoming the new Overlord.
