Sanguinem Palatio Pythonissam

This is about a girl called Damon who moves into a town called 'Sanguinem Palatio Pythonissam' in order to move out of childhood, as she would say. But what Damon doesn't realise is that place isn't normal. And she starts noticing.
SPOILERS AHEAD
Finally, Damon realises that literally everyone in Sanguinem Palatio Pythonissam is a witch. There are three covens. The Tenebris Ignis coven, the Genus Furoris coven and the Custodes Pacis coven.