Agatha

Agatha is the ancestor of the Vampire Royalty and is a half-demon; a half breed between a demon (vampire) and a human, or a Dhampir, in her case.

Appearance
Her appearance is described by others as "Beautiful" and she appears to look a lot like Tsubaki Tachibana, her descendant. She had long silver hair with a black ribbon tied into it and purple eyes.

After she became a lost soul, however, her hair turned black, so did her skin, and her eyes turned red. She looked like an actual demon. She did still don on the outfit that she had before than, albeit with darker coloration.

Personality
Agatha was previously depicted in several stories as being extremely kind, caring and helpful to humans; she once helped a woman find her lost baby and once stopped a Phoenix from destroying a human village. She was also one of the most heartwarming demons but was quite soft-spoken. Still, she expressed a love for humans and demons equally; her father stated that she was the main reason that humans and demons, during that time, were on good terms with each other. She was also very selfless, as, when a woman tried to give her an apple for free, she denied it and told her that she would feel bad if she didn't pay. She also overpaid for said apple and told the woman to buy food for her family with it. Being heroic, she risked her life on several occasions to save humans, and, even when they tried to pay her back, she denied and said that she would feel bad having them to stuff like that. All in all, she was depicted as being a "Perfect Woman."

However, when she is alone or not around any humans, she behaves in an unnatural manner and thinks that humans are taking advantage of her, or, as she calls it, taking her for granted. She was tired of always being nice to humans, because they always depended on her. She wanted to become a "New Person." This is when she sought back to when a old woman, Elizabeth, tried to give her a book of dark magic, but on one condition; since the woman was a mortal and could not control magic, she tasked Agatha to use the book to make her son king. That's when the woman gave her a cryptic spell book; a book containing immense dark magic that is almost impossible for a demon to wield, let alone a half-demon. However, upon opening said book, and saying the words "Karru Marri Odonna Loma Molonu Karrano" aloud, meaning "You and I are one now", she was taken over by the dark energy inside of the book and turned into a lost soul.