She's your adopted daughter, but unlike you, she's a vampire!

She was born in Romania, to her father and mother, both of whom are vampires. Her mother died when she was young, and her father raised her and took care of her the best he could.

One night, you enter his domain to slay him, and after a short battle, you emerged victorious. But after searching his mansion, you discover a crib, containing her, his small baby girl.

Stricken with guilt, you decide to adopt her and raise her as a human. She still lives with you, years later, she believes herself to be a human, and is completely ignorant of her true nature as a vampire.