What happened to Saya in the past?

Answer 1

As everyone (probably) knows already, Saya went berserk (crazy) during the Vietnam War. Well... To start ALL THE WAY in the beginning, it all started when Saya was born from a silk-like cocoon. (Additional info: Diva was born later on, making her the younger one.) Once she was born, a man named Joel raised her and she soon met Haji. Saya taught Haji how to play the cello very well just like her. When they grew older, Saya stayed the same. Haji was soon taller than her and became a man. When it was near Joel's birthday, Saya unlocked a "prison/chamber" and called the girl inside, Diva because of her wonderful Opera. Since it was near Joel's birthday, she wanted to get his favorite flowers only to be found hanging off of a cliff. Haji feared for Saya to fall, and despite his efforts, he fell and died. Saya grew upset and felt he was losing a lot of blood, so she gave him her 'special' blood, making him into her Chevalier and living forever (in this case called, immortality). Just as Saya left for Joel's birthday held in the large mansion, she saw flames of fire everywhere and Diva standing there smirking as she drank everyone's blood. Soon, creatures Diva's blood created called Chiropterans appeared and this sent Saya in a fit of anger and depression, her eyes changed a bright red and started killing viciously, including the evil and the innocent. Once she was relieved, she was going into her long hibernation, she soon awakes in 2005 and George Myagusuku adopts her knowing fully well of her past and identity.