The episodes of the Hellsing anime series premiered on Fuji Television on October 10, 2001 and ran for thirteen episodes until its conclusion on January 16, 2002. Produced by Gonzo, directed by Umanosuke Iida and written by Chiaki J. Konaka, the episodes are based on the characters and settings of the Hellsing manga series by Kouta Hirano but lead through a different story. The episodes as a whole detail the works of the Hellsing Organization, a secret anti-paranormal unit under the command of Sir Integra Wingates Hellsing, and its various operatives including the vampire Alucard and his fledgling partner, ex-policewoman Seras Victoria.