Blood+ (BLOOD+ (ブラッドプラス) Buraddo Purasu, pronounced "Blood Plus") is a franchise based on the 2000 animated film, Blood: The Last Vampire produced by Production I.G and Sony's Anime
production arm, Aniplex.
It premiered in Japan across Sony's anime satellite television network, Animax, as well as terrestrial networks such as MBS, TBS, RKB, and others from October 8, 2005, to September 23, 2006.
Blood+ was licensed for international distribution in numerous regions, including North America, by Sony's international film distribution arm, Sony Pictures Television International (SPTI).
It premiered on Adult Swim on March 18, 2007 and airs at 12:30 AM (eastern) on Saturday nights/Sunday mornings. Season One concluded on September 22 with Season Two set to start on October 7. Additionally, from August 20 to September 21 Adult Swim aired reruns of the first 25 episodes at 12:30 AM (eastern) every weeknight as part of their nightly lineup. The episodes rotate between TV-14 and TV-MA for strong violence.
Under the care of her adoptive family, Saya
Otonashi has been living the life of an anemic and amnesiac, but otherwise ordinary schoolgirl. Saya’s happy life is shattered when she is attacked by a Chiropteran
, and learns that she is the only one who can defeat them. ("Chiroptera" is the name of the order of biological classification that contains bats, probably the reason for the vampiric creatures being called "Chiropterans".)
Armed with her sword, Saya embarks on a journey with her family, allies, and Chevalier
, to rid the world of Chiropterans and rediscover her identity. The course of the journey reveals the background history of the chiropeterans and Saya's very deep past, which extends into the mid-19th century.
The series is initially set in present day (September 2005) Okinawa City (Koza), on Okinawa Island, near the US Kadena Air Base. In the course of the series, Saya visits locales across the world, while fighting enemy chiropterans and searching for her origins.
- From Wikipedia