I'm sure you've all heard about Yue and how the moon gave her a bit of it's life to give her life. But I doubt you've heard of Kiri, daughter of Iroh and younger cousin to Zuko. When she was born, she was close to death and would of died. Had Iroh not brought her to the sun temple and prayed to the sun spirit. Who gave her some of it's energy turning her hair from black to a firey red. This is the story of Kiri's story through the Avatar series.

Azula was not Fire Lord Ozai's favorite child. Intact she's not even the youngest. That gose to Asahi, the last child Ursa and Ozai conceived.