you were another airbender who survived and reduced your age to 16 somehow, you were enrolled in the fire nation school 2 years ago in disguise. When aang was in the school at recess a girl gave aang a compliment of his dances aang said "I could show them again if you want" then her boyfriend(the popular kid) went to him and said "you were gonna show her what?" And kuzon (aang) just said "a few dance moves" then a fight happened between them 2 the popular kid pretended he was crying and the head master said "you're first day and your causing fights?" "That's not true-" said kuzon (aang)