Modern AU Zuko is not a rich jerk hanging out with the “in crowd” at the same high school as all the other Fire Nation characters.
Zuko is that weird kid you hear rumors about who comes from a really swanky part of town but got sent off to military reform school.
People say he’s a pyromaniac and got burned playing with matches and kerosene. (He knows better than to try and explain the truth.)
He used to belong to a fancy kung fu dojo but never came in first place at the competitions. (He’s lost the “championship” style he trained so hard to perfect but learned how to fight for real.)
Azula is an honor student. She’s the darling of the local martial arts circuit and wins everything. People say she’s going to the Olympics.