Ai- (Chinese) meaning Love. The Ai was said to have amazing bending skills of the four elements along with a great connection to animals and spirits. Earth. Fire. Air. Water. Long ago, there was a time of peace when the Avatar and Ai kept balance between the Water Tribes, Earth Kingdom, Fire Nation, and Air Nomads. But that all changed when the Fire Nation attacked. Only the Avatar and his Ai mastered all four elements. Only they could stop the ruthless firebenders, but when the world needed them most, they vanished. A hundred years have passed and the Fire Nation is nearing victory in the War. "Sokka, look! We gotta help them!" (RANKED #1 in AangXOC, Aang, ATLA)