After a long journey filled with mayhem and misadventures, Laharl overtakes the Overlord"s castle. The only problem is that Earth decides to make their move and eradicate the entire Netherworld! What"s more, Flonne discovers disturbing evidence that the Netherworld, Earth and Celestia share a secret past that"s not so pretty. Betrayal , revenge, and the desire to hurt someone really, really bad all come together to give us a war of epic proportions!