I'm not really big into fae reads and haven't read a book with a demon but I liked it all right.

Leo is the demon prince and he (secretly) is trying to save fae from being slaves to humans.  He buys Vera, a fae who at 21 years old, should have her wings but doesn't. She might be the key to unlocking the fae slaves freedom.

I liked Vera. She was so spunky and fun. Leo had such a sweet side that not many get to see. Leo's cousin Rand is, well besides being what his name implies 😈, a great side character!