A triumphant return from a monster-infested forest marks the completion of the 16-year-old hero's coming-of-age ceremony. However, the hero's joy is short-lived as a young village girl is found to be afflicted by a mysterious illness known as "crystal sickness." Determined to obtain the cure, the hero steps out of the secluded village for the first time, only to discover a world in which crystals are merely artifacts of the past and no longer exist
