Mitzi is the school rival and neighbor of Bloom in Gardenia. Socially ambitious to a fault, she spent the larger portion of her life trying to be the most popular girl at Gardenia, often annoying and irritating others through her incessant boasting. Mitzi comes from a wealthy family and expects to get anything she wants. Mitzi is very self-centered, hot-headed. Mitzi is extremely spoiled, holds long-term grudges and loves shopping. A haughty person in general, she is usually mean to people like the Winx. She is shown to be a sadist as she enjoys tormenting and mocking people. Mitzi is also very cruel.