Unexpectedly, humans secured their first victory in the Ragnarök contest in the cosmic arena—a succession of thirteen bouts that will determine humanity"s destiny. The chief deity Zeus dispatched the demigod Heracles to the next round, seeking retribution for the disgraced Greek gods. To confront this widely adored champion, the Valkyrie Brunhilde opts to employ Heracles" diametrically opposed counterpart: the notorious serial killer Jack the Ripper—confusing humanity about whom to rally behind, leaving people uncertain over whom to support.
Simultaneously, discord escalates among the various divine realms, and whispers of a saboteur threaten to fracture those intent on eradicating mankind. As alliances shift and trust erodes, the distinction between ally and adversary blurs. Brunhilde will pursue every tactic to ensure her schemes succeed for humanity's survival.