Final Fantasy X tells the story of Tides, a star blitz ball player who journeys with a young and beautiful summoned named Yuna on her quest to save the world of Spire from an endless cycle of destruction wrought by the colossal menace known as ""Sin"". Final Fantasy X-2 returns to the world of Spire where High Summoned Yuna travels with her companions Rikki and Paine to unravel the mysteries of the messages hidden in the spheres she hunts, not knowing that the answers she seeks may change everything.