help

hiii. whats that story called where a girl dies, but was brought back to life...in a different world. Everyone thought she was a vampire (because of her dark hair) so she was being sold, apparently, they're rare. A duke who was an actual vampire purchased her. When he realized that she wasn't a vampire (he wanted a duchess) he had her become a maid. He realized her blood is the only one that was sweet to him...he ends up falling for her at the end. Thnxxs!!