Creation Set

On the magical continent, ordinary people Li Guangyu embarked on the road of adventure for many reasons, but met the mysterious tree spirit halfway, and was told by him that he had the responsibility to save the world, and was entrusted with a tree crystal. From then on, Li Guangyu went on adventures, studied the details of tree crystals, and also embarked on the path of learning magic. As for saving the world, where does this world need to be saved?