Final Fantasy X is the tenth main installment in the Final Fantasy series. The game is set in the world of Spira and follows the story of Tidus and Yuna. Tidus is a star athlete blitzball player, who is taken to Spira by Auron after a monster called Sin destroys his home city of Zanarkand. Tidus then joins the summoner, Yuna on her pilgrimage with her guardians to defeat Sin and bring about the Calm.