Six hundred and five years ago, space burst like a rotten rag, and a terrible demon entered the world. The next five years disappeared from the history of the world. Drowned out by screams, crossed out by blood, hidden under thousands of dead bodies. Six hundred years ago, the most powerful magicians of this world, at the cost of incredible efforts and sacrifices, were able to defeat the demon and imprison his remains in three hundred guarded tombs scattered around the world, of which only three were real. Three, hiding in themselves the armor of the demon, the spear of the demon and the wings of the demon. For six hundred years, the secret order kept the secret of the demon armor entrusted to it from all those who wanted to get their strength. But everything changed when an unknown person came out of the real tomb, claiming to be from some other world. And also - that he knows absolutely nothing about the snow-white bone armor covering his body.