Ichijou-san wa Kao ni Deyasui

Ichijou-san is the most popular student in the class and belongs to a very prestigious family. Despite all this, Ichijou-san treats everybody nicely and is equally kind to everyone. But she harbors a secret that Mahiro unexpectedly discovered—she's a vampire! She claims she's not interested in human blood, though there appear to be moments when she's barely able to conceal her innermost desires... A bloodsucking, heart-throbbing love-comedy about a young lady vampire! (Source: Flex Comix, translated)