Saya Otonashi

Saya Otonashi (音無 小夜 Otonashi Saya) is the main character of the anime series Blood+. Although she appears to be a 16 year old girl, she is 173. She is a Chiroptera having human appearance.

Past
In 1833, Joel Goldsmith and his crew discoreved a female mummy of an unknown life-form, the life-form later identifield as a Chiroptera. The Chiroptera was pregnant, giving birth to two baby girls that are human appearance. Goldsmith wanted to study about this new specie, transferring one of the girls he named SAYA to a location called the Zoo. Saya raised as a normal human in the Zoo, the other remained unnamed, locked up in a tower, and is used by Joel for experimentation purposes. Saya, upon discovery of this child in 1863, named her Diva.

Thirty years later, Saya ceased aging. Joel became aware of the special properties of her blood. Saya became aware of the existence of Diva locked up in the tower. 12 year old Haji is introduced to Saya to investigate her reproductive potential. Experimentation on Diva presumably continues, with Amshel, a member of a branch family, acting as an aid to Joel.

Twenty years later, seeing that Saya has never change, Haji asked Joel about her. Saya then heard Diva's singing, following the sound, Saya found the tower where Diva locked up. Hearing Diva's story, Saya decided to release her on Joel's birthday party. Haji falled from a cliff, and Saya turned him into a Chevalier via a mouth-to-mouth transfusion of her blood. When Saya returned to the mansion, Diva has killed Joel, standing on a mountain of bodies sucking his blood. Regret what she done, Saya and the descendant of Joel founded the Red Shield pursued Diva.

In 1918, Saya and Haji went to Russia, tracking down Diva, Rasputin and Anastia. Saya met a young girl named Sonya, which revealed later that the 2nd brother, Grigori took her appearance after she died recently. He was killed by Saya. This event, revealed in episode 17.

1959, Having awakened some unknown time beforehand, Saya hunts several Chiroptera at Yokota Air Force (the events of Blood: The Last Vampire). Several months later, the Vietnam War begins. Saya enters third sleep soon afterwards.

The Chiroptera sightings in Vietnam war confirmed. The Red Shield injected Haji's blood into a hibernating Saya to cause an artificially induced awakening, resulting in her going berserk, killing Chiroptera and humans alike. Saya cutted off arms of both Haji and Carl, and returned to her sleep period. The dying original David entrusted Saya (in her fourth sleep) to George Miyagusuku. Haji, displeased by the incident, distances himself from Red Shield. Red Shield were unable to establish his whereabouts, but there were sightings of him in Hong Kong.

Since her third sleep, George adopted Kai and Riku whose parents were killed in a traffic accident, and Joel the 6th became head of the Red Shield in 2002. Two years later, Saya awaked from her sleep and was found by George. Knowing nothing of her past, George introduced her to Kai and Riku, starting for Saya a new life. A few months later, incident have occured in Okinawa, and Saya saw Haji on the street, starting to regain her memories. The events of Blood+ begins.