Hellsing Ultimate (2006)

In the endless battle between man and the supernatural, one organization stands out: Hellsing, which specializes in dealing with paranormal threats. One day, on a mission to free an English village from a ghoul attack, the leader - Sir Integra Fairbrook Wingates Hellsing - sends her most powerful agent: a vampire known as Alucard. During the conflict, a police officer, Seras Victoria, gets caught in the crossfire and is resurrected as a vampire. Now she must assume her new identity if she wishes to endure the oncoming battles. This anime adapts the manga of the same name, following closely its source material.