In a distant past, a fierce battle raged between the Netherworld and the Spirit World. Following the Netherworld's defeat and the exile of Lord Yakumo, its ruler, into the cosmic void, five champions of the Spirit World unite to thwart Yakumo's Demon-Gods' quest for control over mystical locations. With Lord Yakumo on the brink of seizing the Power Sphere, the vital font of Netherworld's power, the fate of our world hangs precariously, poised to transform into a realm akin to the Netherworld once more.