Tianmei de Yaohen

A noble vampire prince falls for a menial human blood servant... from refusal to acceptance, she begins to worry about him and solve problems for him... However, there are gaps of status, classes and hatred between them, in this confrontation between vampires and humans, will they finally break the rule and be together?
(Source: Webcomics)
Note: There exist 5 different dubs, each using a different voice actor for the male lead