Water , Earth , Fire , Air. My grandmother used to tell me stories about the old days, a time of peace when the Avatar 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 mastered all four elements. Only he could stop the ruthless firebenders, but when the world needed him most, he vanished. A hundred years have passed and the Fire Nation is nearing victory in the War
There was a boy named Aang, he came the Avatar after the last one died. He married a girl named Katara who helped him on his journey. They had four kids Kya an waterbender, Bumi a normal kid, Tenzin an airbender, and Y/n who passed the test of becoming the next and possibly next Avatar.