You were Zuko's and Azula's younger sibling. When Zuko was banished you gone with him together with uncle Iroh. But Zuko betrayed you 2 and joined Azula so Iroh and you went to fire nation prison but Iroh managed to escape and then freed you too.

You were sleeping in the same tent as Iroh and when you woke up you saw Zuko was sitting there on his knees waiting for Iroh to wake up. You decided to pretend to be asleep and wait to see what he wants. A few minutes later Iroh woke up too, Zuko started begging for forgiveness but Iroh didn't really want to listen just happy he found the right way and immediately hugged him close