Charles wears a black western-styled hat, with a black and white striped fur tail on the top. She wears a yellow striped cloth, and a purple and golden open shirt on her torso. She wears detailed steel gauntlets on her arms, a frilled teal skirt, and extravagantly designed cloths surrounding it. On her right leg, she has several metal bands, with a steel leg guard with silver boots.
Once a transfer student from France, she was lured to the Buou Academy by Yoshihiko to be used in his experiments. She is a shy and kind person, but will fight for those she is loyal to, unless it goes against her beliefs.
She developed a romantic relationship with Yoshihiko, which remained through the betrayal and off attitude Yoshihiko presented to her.
Charles fights with two large, double-edged blades, and is able to utilize the different elements via the phrase, "Mode Change" and is able to augment her fighting strength tremendously. However it takes a huge toll upon her, and she has to take time between each mode. Her pact mark is located on her left hand.
Mode Change: Flame (Fire): A mode wherein Charles can influence the element of fire.
- Hellfire- An attack channeling the flames of hell charging unto her opponent. This attack was so powerful that it was able to break Gisen's shield.
Mode Change: Glass (Ice): A mode wherein Charles can influence the element of ice.
- Hyouga (Icy River)- An attack where Charles creates a river-like flow of ice, freezing anything in her way.
Mode Change: Tornado: A mode wherein Charles can influence the element of wind.
Mode Change: Vent: A mode wherein Charles can can create vital explosions at her opponents.