Mirta is a girl who stood out amongst the other witches of Cloud Tower and has the ability to produce illusions using her imagination and emotions. She has often been ridiculed by the Trix at Cloud Tower because of her opinion that Witches and Fairies are not very different from each other and that they can be friends. Mirta even attempts to help Bloom on one occasion and ends up by being turned into a pumpkin by Icy. At the end of Season 1, she transfers to Alfea and becomes a fairy.