Aang was killed by Ozai, Azula killed Zuko. The Fire Nation ruled the world. Eventually, a new Avatar is born. The Last Avatar. In a turn of irony, the reincarnation is none other than Azula's son, Kuzo. Ambitious, charismatic, and at times, coldly calculative. He sets out to do what no Avatar has done before him,do the things they could not. Bring everlasting peace by any method.