Does this seem like a good plot to you?

Personally I wouldn't read something like it, mostly because I like books that are real and I never had a thing for warlocks but other than what I like I do think many people would enjoy that plot. Maybe add in more action and make it so it's not a normal Witch or the Demons are actually different in the books then what society says they are. Like in Twilight (I don't personally like the books but I did think it was impressive how she was creative to make the vampires have different powers).