The Dark Fairy is pure evil. She enjoys spending her time making the lives of other Maradans worse off. As one of Queen Eleka's minions, she raises money for Queen Eleka to help her with her plans to take of Marada. Since losing the Minipet Island War of 2007, Queen Eleka has been under the constant watch of King Baspinar to prevent her from starting another war. Although the King doesn't know this, the Dark Fairy has been busy raising the money for Queen Eleka to start a war.
You can visit her once every 3 days and give her 100,000MP to support her cause. If you are lucky, she may throw a prize at you. But don't expect much from her. You won't even get a thank you.