Fallen gods, expelled from the confines of the ether, gather crumbs of strength among people, placing on sacrificial altars both their supporters and those who are driven to them like herds of rams by mercenaries. The Fallen are capable of occupying any shell, and even the power of the alchemist, which allows Eri to sense the transformation of matter, cannot help him recognize who is next to him: an enemy or a friend, a once formidable god or a crafty goddess. Maybe by finding the Book of Fates, he will save this world from devastation? Or will the sword of Shahoda, who recognized him, help him cleanse it of the Fallen?