Tidus is a star athlete in his city. He is famous, has all the ladies, and simply loves his life. However, one day, his city is attacked by a mysterious evil, and an old family friend shows up, initiating his quest. He is magically taken to the world of Spira, where that evil, known as Sin, ravages the planet and its people with death and destruction. Sin is a punishment for the world's crimes, however, Tidus has been chosen to stop it. He meets up with Lady Yuna, a summoner (and daughter of a high summoner). Summoners can call the power of the fayth; aeons. Aeons are mighty and mystical creatures. Yuna quests for the Final Aeon: the one power that can slay Sin. Tidus joins as one of Yuna's many guardians, and travels with her to obtain the Final Aeon. However, the quest goes much deeper when high-ranking religious leaders betray the teachings of Yevon, the celestial overlord of Spira, and Yevon himself condones it. Tidus battles with his past and his true self while trying to sort his emotions and get back home to his world. Corruption of religion and the terror of Sin take the adventure to unimaginable heights full of friendship, war, and the power of true love.