The region of Metafalss surrounds Infel Pira, the second Tower, which is said to represent the Goddess Frelia of the Trio A mysterious epidemic called Infel Pira Dependency (IPD) has been killing Reyvateils. Croix, a young knight from the Church of Pastalia, is sent to contain the epidemic. However, many more challenges await, which lead him to unraveling the mysteries of the planet Ar Ciel and seek the legend handed down by the people of Metafalss: the lost Song of Metafalica.
