Necessarius

Also known as the Church of Necessary Evil, it is a secret branch of the Church of England that conducts supernatural and magical experiments to fight supernatural threats. Ironically, Necessarius was created by English Puritans who despise magic, but since Britain was a magical country during their time, they had to learn to use magic to counter magic. Their headquarters are located at in London. They are allies of the Vatican and rivals with Annihilitus, the Russian Orthodox Church (ironic, as the organization's headquarters in real life is of Orthodox Denomination). The leader of the Necessarius is surprisingly led by a young female Archbishop named Laura Stuart.