This is an image of Kairi.She is the best friend of Sora and Riku.She mainly  appears in Kingdom Hearts I,II and in Kingdom Hearts Birth By Sleep where she is a little girl.She is one of the seven "Princesses of Heart".She lives with Sora and Riku in the Destiny Islands.She strongly believes in friendship.Kairi was originally a resident of Radiant Garden, having encountered Aqua and Mickey at age four as they sensed the light in her heart that made her a target of the Unversed. Soon after, seeing their meeting to be destined, Aqua casts a spell on Kairi in case she would be in danger that will send her to another who could protect her. Some time after, the spell took effect when Kairi was sent to the Destiny Islands when Xehanort performs an experiment to test the relationship between Keyblade Masters and Princesses of Heart. At the beginning of the main series, she is fourteen years old.