Kirth Gersen carries in his pocket a slip of paper with a list of five names written on it. Theses are the names of the five Demon Princes who led the historic Mount Pleasant Massacre, which destroyed not only Kirth's family but his entrire world as well. He roams the universe, searching the endless galaxies of space, hunting down the Demon Princes and exacting his revenge. Three princes will fall before Kirth's work is done, and two more await their doom...