The Maid is a Vampire is a Manga/Manhwa/Manhua in english language, Comedy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

15-year-old Alfred Saionji, heir to the venerable Saionji family, spends his days striving to become a first-class gentleman while enduring strict family rules. His solace comes from his maid, Magly. Thanks to her, a cool and beautiful maid, Alfred's life has become colorful, but... In fact, her true identity is a vampire. Once she sees or sucks blood, her very naughty nature comes out, and Alfred immediately has his blood sucked at her command... This is a love story between a boy who seeks the strength to protect a girl and a clumsy, naughty vampire maid who is in love with him.