In a world where magic and technology coexist, both sciences are used in the fields of medicine, warfare and research, but with differing results. Overuse of magic is forbidden as it causes mutations which transform the user into violent, uncontrollable and unstoppable monsters.

Reiot Steighnberg is a lone wolf tactical sorcerer dedicated to destroying these demons. Armoured and plated in his metal mold, a straight jacket designed to keep him human, he walks a fine line between magic and madness as a rogue monster killer.