Derris-Kharlan, localized as "Derris Karran" in the Game Boy Advance version of the game, is an area in Tales of Phantasia, as well as the home planet of central antagonist, Dhaos. After losing its World Tree in a bloody war, it began suffering from mana depletion and required a Mana Seed to heal itself. Because of this, the people sent Dhaos into space to find another planet with a World Tree that could bear them a such a seed, and the planet he found was Aselia.