The Honor of Love (ATLA fanfic)

*ZUKO LS* Istari was born and raised in the Fire Nation. After her parents were murdered for betrayal, she flees to the Southern Water tribe, looking for her mother's family. After three years living with Sokka and Katara, the Avatar ascends and together they go on a journey to defeat the Fire Lord. Istari vowed to leave her past behind and never look back, until an old friend of her crosses her path and changes everything.