I'm just starting this series and I already have a number of picks. The demon queen's design is strange; such a large tail would imply heavy bone structure, and she would most certainly waddle quite a bit, especially while running, lol. If she is racially a demon, why would her powers being lost change her into what appears to be a human? Her sisters don't seem to have any demonic features at all, appearance wise. I'm curious if the religion in this world mimics traditional Eastern beliefs, otherwise, why would demons employ priests.