Deaus, her name being a shorter version of demon cat in latin.
She is a domestic cat which was cursed by a witch when experimenting in magic, she infused her cat with the soul of a demon and this gave her cat magical powers and changed her colours and markings.
The witch (her owner) did her best to use more magic to try and give Deaus (then called Missu) control over the demon within her, the demon controling Missu at the time attacked the witch, she fought but eventually the demon controling Missu took her owners life. As the last life left Missu's owner Missu regained control over her body, the magic the witch tried to use to allow her control finally working. She watched her owner die not being able to help her, this upset Missu greatly, as she now had the demon within her she had a greater intelegence and understanding than a normal domestic cat. She vowed from that day forward that she would leave Missu behind. that she would become Deaus. She would never forgive herself for those actions, she took her pain and suffering out by hurting more of the world, using her magic and skills for evil, soon getting control over blue flames which came from her handpaws, holding the flames and shooting them,
She soon found another feline of un-natural colours, Ruden, at first she attacked him and tried to kill him, when she tried to use her magic against him it was useless. Ruden also had a demon within him. however the witch who had tried to fuse his soul with a demon was sucsessful, and he had a much stronger control over the demon within him which was also a lot weaker then the one inside Deaus. Ruden did not have control over magic, but he could not be affected by it. Ruden and Deaus stayed together and helped each other try and understand themselves and this soon turned into a romantic relationship/