I DO NOT OWN ANY PART OF FINAL FANTASY X. ALL COPYRIGHT GOES TO SQUARE ENIX
It has been four years since Yuna defeated Sin. After the defeat of Sin, things seemed calm in the land of Spira. Everybody was happy...except for Yuna. She had brought Spira the eternal calm but was still very unpleased with the outcome of the final battle with Yu Yevon. She was sad because she found out that once she defeated Yu Yevon, there would never be a Sin again. This of course was a good thing. But if Sin is no longer in Spira, then the Dream's of the Faith wouldn't be around anymore. And the person she loved, well he was a dream. After Yu Yevon was defeated, Tidus was gone.
Yuna decided to go back to the Isle of Besaid. There she lived with her the people she grew up with and the people that journeyed with her. She lived with Wakka and Lulu. Yuna was always amazed by the way that Wakka and Tidus could breath underwater. One day she was practicing and she was making a lot of progress. Not everybody in Spira could hold their breath for about three minutes. Well she decided to call it a day and went back to her village. As she was walking back she was stopped by a strange man. He said he was Yaibal and that he was part of the Youth League. Yuna heard about the Youth League and their rivals New Yevon. Yaibal wanted Yuna to join, but Yuna refused. Yuna just kept walking along until she reached the cliff that overlooked the village. She was talking to Wakka when Rikku, another one of her former guardians and cousin, ran up with a very excited face. Rikkue said that Kimarhi found a sphere of what looked like Tidus on Mt. Gagazet. They looked at the sphere and it really looked like Tidus, although some feature were kinda off. Rikku suggested to go look for him. Yuna agreed and when Wakka was off at the village, Yuna said she wanted to go right away.
After Yuna had taken off of Besaid, she joined the Gullwings. The Gullwings were a group of sphere hunters. Yuna joined because she wanted to try to find more information about Tidus. Well time went by, the Youth League and New Yevon continued to fight and Yuna along with Paine, another member of the Gullwings, found out that the man in the sphere wasn't really Tidus. A new threat faced Spira and it was a giant machina called Vegnagun. Again Yuna saved Spira from total destruction and defeated Vegnagun and she was finally reunited with her love, Tidus. The faith had resurected him.
The final story begins shortly after the defeat of Vegnagun.