Acho que você está procurando Estreito Jacket , (2008).
In a world where sorcery and science co-exist, the power of magic comes with a price: Humans who do not take proper precautions are transformed into horrific demons. Those who destroy these demons - and run the highest risk of all - are tactical sorcerists known as Strait Jackets.
Foi exibido como um dos recursos Ani-Monday do Sci Fi Channel.