Strait Jacket (Light Novel)

In a world of science, sorcery is rediscovered and rapidly adopted in all areas of industry – but at a high price: an invisible pollution is spreading out across the world. Those who do not take proper precautions become infected, lose their sanity, and become demons. The Sorcery Administration Bureau, along with their Tactical Sorcerers, monitor magic uses and respond to any demonic outbreaks that occur. In this world, Ray Otto is a rogue tactical sorcerer who hunts down demons with reckless abandon. Given that he always gets the job done, the administration generally lets his activities slide. Together with the mysterious girl Kapel Theta, Ray risks his life and humanity to destroy demonkind... when the price is right.