Name: Saya Otonashi
Age: 173
Anime info/Bio: At the start of the series, Saya appears to be a high school girl living a normal life on the Japanese island of Okinawa. She is adopted and has no memory of her earlier life than one year ago. She is able to heal all her injuries very quickly but must regularly receive blood transfusions or drink blood to remain healthy.
Despite these strange traits, she has the outward appearance of a young human teenage girl with an unusually large appetite (used as a humorous effect several times), most likely a side effect of her inhuman metabolism. However, she does start having more flashbacks of her experiences fighting Chiroptera in the Vietnam War and in 1920's Russia. Her oldest memories are from her birthplace at Joel's mansion called the Zoo in 19th century France. She was "born" in 1833 from a cocoon like object taken from a mummy of a Chiropteran along with another cocoon containing her sister Diva. She also can spend decades hibernating in a cocoon, only awaking for a few years before sleeping again. Whenever her and Diva's blood mix, the blood crystallizes and disintegrates. She is a skilled athlete and her weapon of choice is a nihontÅ (Japanese sword or katana, though one slightly changed to have features analogous to those of a kopesh) with bohi or grooves specially designed to spread her blood through its entire blade, making it a deadly weapon both for Diva and any Chiroptera made from Diva's blood. The first blade in the series is broken by Amshel, but she acquires a new sword from David with a red crystal at the base of its blade. This crystal is actually a piece of her adoptive father George's blood which crystallized when she killed him with her own blood in order to spare him the fate of fully becoming a Chiropteran.
Saya's human personality is usually that of a cheerful and optimistic girl but her suppressed vampire side (evidenced whenever her eyes turn red in contrast to her twin sister Diva's blue eyes) is infinitely more cold, calculating, and with a warrior's edge that brooks no foolishness. However, as of late Saya has had very little to be cheerful or optimistic about as she learns more and more about herself and the enemies that stalk her. Her greatest fear is perhaps finding out that she is indeed the same or much worse than the very monsters she now hunts as hinted by the grisly yet splintered memories she has of her dark, shadowy past. It is revealed that after she and Haji had left the 'Zoo', she made him promise to kill her after Saya has slain Diva so as to prevent the survival of the Chiroptera. Post episode 33, Saya gains a much darker appearance and personality (there are several references that she has already lost hope in things - this might be attributable to Riku's death), sporting a dark maroon trenchcoat and generally longer hair.
Past this point in the series, her willingness to co-operate with the Red Shield and with her own family drops, as she wishes not to endanger them any further, believing that her fight with Diva is hers to fight alone. This somewhat marked change in Saya's normally cheerful personality is also accompanied by an acceptance of her Chiropteran biology, with a willingness (of necessity) to feed off of Haji's blood with little shame.
Saya confronted her sister in the Metropoilitan Opera House, and the duel ended with the sisters piercing their swords through each other. Though Diva began crystallizing, Saya survived as Diva's blood lost her potency due to her having children. At Kai's pleas, Saya made a decision to live instead of die and to also let Diva's twins live. Shortly after her return to Okinawa, she went into her hibernation period, and Kai along with the twins watches over her as she rests in the Miyagusuku family grave. Haji also visited, leaving his hair ribbon tied around a rose.
Why she is at the Kindergarden: To track down and kill Chiropteran.
