A certain heroine’s hidden side (Patreon)

She is one of a group of duellists with flamboyant hair colours. It’s been ten years since she left school, and after studying abroad, she went on to make a name for herself as a dancer. However, whilst still at school, she was brainwashed by a dark artefact, and as a result of some strange twist of fate, dark powers are said to have taken hold of her body…