The world that Ansem was once king over and was home to Leon, Cloud, Yuffie, Aerith, Cid, and others. But, as we know, Ansem became obsessed with the Darkness after studying Heartless and began artificially multiplying them under the castle. The castle was deserted and reinhabited by Maleficent and Riku. Now, it is in ruins and being rebuilt by Leon, Cid, Cloud, Yuffie, Aerith, Merlin and others and Sora, Donald, and Goofy are asked to help. Later in the game, the Organization attacks this world and there are huge battles in addition to Cloud and Sephiroth facing off.
