Kairi is one of Sora’s best friends, and one of the Princesses of Heart, having formerly lived in Radiant Garden. She hid herself away in Sora’s heart in the first game, and was released when her body was rescued from the clutches of Ansem.
Kairi is wearing an all new costume for Kingdom Hearts 3, with a bright colour scheme that showcases her role as a guardian of the World of Light.