Unwanted Witch

Two twin witches on different paths and a rogue coven looking to capitalize on the sibling rivalry, and the shape shifting demons plotting to conqueror Earth.
Cosima's sister goes back on her word and delves into black magic, and joins the Xenar Coven, a rogue coven that has aligned with the shape shifting demons. If Cosima fails to find and stop her sister, the world will fall and she will fail her god. Her life won't be the only thing she loses.