It's nice to see Ares say it the way it is and that he has absolutely interest in hiding his interest in her and it's her who is not honest with his feelings. Not him.
The greater demons look more like humans. I wonder if greater demons are just the offspring of a human and a demon?
Also, if the knowledge of the other world is so valuable, how did the whole remembering your past life == burned to death come to be?
This reminds me of a short story I read about a woman who is cursed to be the most beautiful in the world to everyone except to herself. I hope the lord never finds out he is beautiful.