The sky is tearing open. Monsters are crawling through. And no one knows why.
Zero Hart awakes one morning to anomalous rifts flooding his city with Ragnars, interdimensional monsters from another world, ravaging everything in sight.
Zero barely manages to survive— until a cocky demigod named Orion saves him, claiming to have come from out of those rifts, from another world known as Enmida.
But Orion isn’t the only one who came through the rifts.
The Twelve Avatars, ancient warriors branded with the sigils of a mad goddess, spearhead the destruction that is suddenly falling upon Earth.
Each carrying a fragment of her will, It's up to him, Zero Hart, to find and kill all 12 marks, put an end to her madness, and save his world... or whatever's left of it.