In the winter of the year 198 of the Fantasy Era, a giant meteorite struck the northern part of the continent of La Nino, instantly wiping out all civilizations and burying them forever in the depths of the sea, leaving no survivors. Kingdoms and city-states sent aid to the disaster area, but all who went perished, vanishing into the mysterious sea… This event is known as the Cataclysm of Kata. The immense changes brought about by the meteorite affected the entire continent of La Nino, thus this cataclysm is considered the beginning of a new era.