Kairi is one of the tritagonists of the Kingdom Hearts series.
Kairi was born and raised in Radiant Garden by her grandmother.
Kingdom Hearts: Birth By Sleep
She is first seen being chased by Unversed.
She plans to leave Destiny Island with Sora and Riku to see other worlds.
Kingdom Hearts II
She is seaching for Sora, who went missing at the end of Kingdom Hearts.