Koko is a young girl from Kyoshi Island, she's eight years old. When Aang comes to Kyoshi, Koko and the rest of the girls of the village develop a crush on him.
Young but self-assured, Koko quickly becomes the ring leader of the group of girls who follow Aang around during his visit to Kyoshi. Koko is very demanding of Aang's attention. She also enjoys her prominence amongst Aang's fan club and is even so bold as to call him "Aangy."