Guilty Gear Xrd -Sign-

It was in 1999 that mankind discovered magic. But this very resource, meant to usher in world peace, was instead leveraged as a tool of war, and in time the Gears were created. As if to condemn these thoughtless deeds, the Gears developed a will of their own and turned their fangs upon humanity. The Crusades that followed ended when "the Destroyer", Justice, was defeated. Though man emerged victorious, many threats yet loom large in the shadows of that hard-fought peace, threatening to engulf the world. And so mankind must continue to atone for the sin of magic.