A nameless stranger awakened from a 100 years sleep by a computer which also randomly assigns him a name, Hero is the main character and champion of Crystalis. In the GBA version, he is called Simea.
Hero's purpose is to follow clues pertaining to his past by finding the Wisemen and defeating the Four. The world was devastated by war until construction of a floating tower ended the conflict. Hero learns that he and another were put into protective stasis and that he must safeguard the world from a dire threat. Early on, all are led to believe this threat is Draygon and his army, but while he is the main antagonist, it turns out the threat actually comes from the floating tower which carries the ability to destroy the whole world.