When Siddhartha Gautama attained nirvana, he observed the demon king of the sixth heaven, Mara, flout the precepts of Buddhism and annihilate himself, dispersing into numerous "demonic ashes" possessing the wizardly power to transmute into diverse forms according to human wants, earning them the label of "devil relics." In due course, those who succeeded to these relics consolidated into a united faction called "Niraya," giving rise to a tale of interlinked rebirth, extraordinary capabilities, disposition, and exciting exploits.
