I'm not loving the racist attitude towards the demons. =_=; They just seem like another race of humanoids and not evil. Go make friends with that Prince MC!
Isn't she quickening the humans/demons war by selling information about the stone so early on? Plus her brother's going to be one of the key persons in that war?? is she not worried at all just because he won in the end of the novel ( . ര ʖ̯ ര . )
Lol the holy or what sword? With wings lol. It looked like a card captor sakura item. Blacktown? Couldn't be more obvious. There are many musterious names like Svarton or Umbralis or whatever