PmChivas : This story had a lot of interesting elements but unfortunately the author couldn't pull them together to make a cohesive storyline. The FL is neither strong nor weak -- she is just there as a catalyst. The circumstances surrounding the MLs were way more interesting, but, unfortunately, they too suffered from plot holes and poorly fleshed out motivations.

Issues:
-- FL was saved by Demios from the Human side of the world. What happened there??
-- So in those 5 years FL never once tried to be intimate with her husband. Not even trying with willpower to hold his hand??
-- ML1 was the child between the former emperor and his lover, so was the Empress really his mate?? Or did he just carry her name on his body??
-- Former emperor knew his son was unfit for ruling from a young age, why not make is nephew CP?? Why wait??
-- Annihilate a whole beastkin fam over black magic just because you're afraid of what MIGHT happen instead of what happened??
-- Antagonist what was your true motivation?? Revenge for family's death?? Why the whole beastkin world instead of just the imperial family??
-- FL never learned anything else about her abilities as saint/star of the empire??
-- All the black magic being tossed around and Sea Priest doesn't even mention it or do anything??

I have other issues, but I don't feel like typing anymore. LOL!! Lastly, I feel sorry for Demios ending. Was he truly the villain?? I don't think he was, yes he did villainous things, but I can't see him as a true villain more like a victim.