Two years have passed since Sin was destroyed. Since defeating Sin and becoming high summoner, Yuna has lived on her childhood home of Besaid Island, and the predictable days pass one after the other. Isn't the simple happiness what she always wanted ? Still, Yuna senses something is missing... Then, one day, her former guardian Rikku (also cousin) comes to Besaid Island and shows Yuna a movie sphere. The recording was him.(Tidus) Or is it ? Yuna can't tell whether it's him or not. So Rikku suggested : "Let's go look for more clues!". If it is him, Yuna will find him and see him one more time. Of not, she will never see him again. No matter what the truth may be, the answers she finds may change things forever. Once again, Yuna begin's another journey. The story continues to Final Fantasy X-2.

After defeating Sin, Yuna returned to her home on Besaid Island. The days passed wihtout incident, but still she sensed something was missing in her quiet existance. A movie sphere that Rikku shows her gives a reason to journey once more. For now, life as a sphere hunter affords Yuna the chance to live on the wild side. Old habids die hard, though. Yuna still can't walk away from people in need.

In the two tyears since she helped Yuna defeated Sin. Rikku has travelled with other Al Bhed arouns Spira, teaching people all there is to know about Machina. During the so-called "search of truth" that overtook Spira after Sin's defeat, a group of Al Bhed joined the ranks of sphere hunters. With their airship, the Celsius, as a base. Rikku and Brother founded the Gullwings. Rikku invited Yuna to join the Gullwings, and they have been travelling together ever since. As always, Rikku's endless supply of energy keeps the team on their toes.

Paine is armed with a one-handed sword and a lukewarm attitude. It seems she joined the Gullwings because of something that happened in her past. However, none of the Gullwings know exactly what that might be. The often ridiculous antics of the Gullwings tend to prompt sarcastic remarks from Paine, but the others don't seem to worry about it much.