It's dubbed!

This prequel series depicts the founding of the Fairy Tail guild. Many years ago, Mavis Vermilion was a servant on Sirius Island, mistreated by a guild master and his daughter, Zera. But Mavis stayed positive, because her mother once told her that fairies never visit people who cry about their problems. When the guild came under attack, Mavis pulled Zera from the wreckage into the forest. Seven years went by, and the powerful wizards Warrod Sequen, Precht, and Yuri Dreyer arrived on the island, seeking a powerful jade gemstone. This journey would change the course of magical history.