Kyuuketsu Bar e Youkoso

Azusa is a university student working as a new host at a "vampire bar" where vampire customers can enjoy the blood of the host. The vampire bar owner scouted Azusa, expecting his blood to have the finest flavor. While being toyed with by senior staff members Mika and Madoka, and troublesome customers, Azusa will discover the "taste of love" between a vampire and a human!?

(Source: Manga Park, translated)