Appearance: The video-games Final Fantasy X and Final Fantasy X-2
Creator: Tetsuya Nomura (character designer)
Occupation: Summoner/ sphere hunter
Weapon: Stave and magic/pistols et a.
Race: Half-human, half Al-Bhed
Clothing: The main inspiration for Yuna's clothes in FFX was the kimono-style of Okinawa, Japan. To make the dress more flowing when she does her sending (helping the passing of souls to the far-plane where they belong which much resemblance a dance) she has the long sleeves of a furisode - the most formal model of kimono worn by unmarried women in Japan.
In the FFX-2 game, her clothes go through a radical change and she goes from the formal looking kimono-styled dress to a pink top and minimal shorts.
Final Fantasy X is based around the story of a young man, Tidus, being swept ashore in a strange land where he meets Yuna and her guardians who are taking her on a pilgrimage around the world of Spira where they live. This is because of the monster Sin that is doing it's best to cause havoc for the inhabitants and the summoners (there are more around than just Yuna) must do what they can to stop it. It is not until later that Tidus begins to understand just how big a sacrifice Yuna is willing to make to bring peace to her home, even if it will only last for a short while. He is determined to find out some way to stop the inevitable to happen - much fueled by a growing love for her, feelings that she returns as much as she can.
Final Fantasy X-2 is a continuation, with a few of the characters from the original game and some new ones. Sin is destroyed and Yuna can continue her life - but without Tidus - and she travels around Spira searching for spheres (object with films on them) since she found one with a recording of someone who looked very much like Tidus and she is very much hoping for him to return to her. Somehow.
She goes from being a overly serious girl in the first game to be someone with a lot more spunk, but she remains sweet and caring.