I recommend "My Vampire Goddess Can't Sign a Contract with Someone", a light novel, a fantasy novel, to you. There were not only humans in this world, but also all kinds of demons and ghosts. Vampires were a very special existence. They needed to feed on blood to survive, and they would turn the people they fed on into their vampire slaves. As for the female lead, Wan Peier, she was born into a noble vampire family, but she could not turn humans into her slaves by drinking blood. In order to find out why she did not have this ability, she asked for a lot of knowledge. She was still exploring whether there were humans who could not be controlled by the vampire's ability. I hope you like this fairy's recommendation. Muah ~😗