 Final Fantasy X is set on the watery world of Spira. Once a technologically-advanced utopia, Spira s civilization was suddenly destroyed by an enormous force of nature known as Sin. (While Sin is represented as a ball of fire in the FF X logo, it is not actually a corporeal being.) One thousand years later, humanity has adopted the Ebon religion and lives in fear of technology, never knowing where Sin will strike next. Players step into the shoes of Tidus a cheerful sword-slinging youth and a star player at the underwater sport of blitzball. But while Tidus is the dominant main character, the actual star of the story seems to be his staff-wielding counterpart, Yuna. The daughter of the famous summoner Braska and a summoner herself, Yuna has been haunted by strange dreams as of late. Believing Sin to be the cause, she swears to defeat it, and perhaps emerge from her parents  shadow in the process. Yuna s plan is to journey to each Ebon temple and acquire its resident Aeon; only once she has gathered them all can she hope to defeat Sin. Tidus is one of Yuna s bodyguard and traveling companion on this mission.