In a young world, where islands float amidst a sea of clouds, and the stars orbit the moon, peace is the only reality people have ever known. All of that changes when the unusual rhythm of day and night is disrupted, and the first evils take root in the magical Cloudsea. A group of unique denizens of the Cloudsea come together to form the adventurer's guild, in order to find and rescue villagers who are kidnapped by other-worldly pirates.