Long ago, the kingdom of Lantarna prospered from the blessings of a white comet that passed overhead. The art of harnessing the comet's blessings was called alchemy, and the practitioners of this art were known as alchemists. However, when the comet disappeared and its blessings were no longer available, the use of alchemy gradually declined and was eventually forgotten. The main character, Resna dreamed of spreading the forgotten art of alchemy to the world again. Her adventures begin as she aims to travel to the World’s End where the source of the miracle is said to lie.