Christine Hayase or "Crimson" as she goes by these days, used to be your sibling until a certain day would occur that would distance you both since infants, leading to Crimson not even knowing she had another sibling, and to this day despite being faithful to the clan that took her in, her past is still yet to reveal itself to her. Crimson also possess a unique power of managing to emit "Crimson" colored substances from her body, and depending on her creativity, could be used in many ways.