It follows the mass-horde combat formula popularized by Dynasty Warriors, with a priestess who received eternal youth in exchange for exterminating demons and a mystical beast, Inugami, as her battle companion, in a 16th-century Japan plagued by supernatural creatures. Konami brought it to Europe a couple of years after its Japanese debut under the name Demon Chaos.
It's one more entry, decent but not very original, within the huge number of clones the mass-combat genre generated during the PS2 era.
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