Long ago, a valiant Band of Heroes using Ars Magus, a potent combo of magic and technology, defeated an insidious black beast endangering humanity. Ragna Bloodedge, a famous rogue outlaw, armed with the mighty Azure Grimore, now seeks to wreak havoc upon the Librarium, a clandestine organization that governs Ars Magus. Ragna soon becomes the target of bounty hunters, vigilantes, scientists, vampires, and Librarium foot soldiers, but he's unaware how closely his fate is tied to the world's future.
