|Jafar says: Read my lips and come to grips with the reality!|
Yun is the central antagonist of the Avatar: Kyoshi series. He appears as a major character in Avatar: The Rise of Kyoshi and as the main antagonist in Avatar: The Shadow of Kyoshi. He was a boy falsely identfied to be Kuruck's sucessor as the next Avatar.
Yun was also the former friend of Kysohi and Rangi before he was taken into the Spirit World by Father Glowworm .
While he manged to escape, Yun was no longer his former self as he had turned evil due to his desire for revenge against all who wronged him. Yun died for real at the hands of Kyoshi after his desire for vengance endagered several lives. Despite his fall from grace, Kyoshi and Rangi were still devastated at the loss of their former friend.
Little was known about Yun's early childhood but he was persumbed to be orphaned by Kysohi since he never talked about his relatives and Jianzhu was the only person he considered his kin. What is currently known about Yun's early life was that he was born in Makapu village where he was famous in his local community for his talent in Pai Shao. Yun was also a prodgious earthbender. Yun's talents attracted the attention of of Kelsang and Jianzhu during their quest to find and locate the next avatar. The travling pair eventauley concluded that Yun was was Kuruk's reincarnation. Yun was then taken to Yokoya Port where he'd be train in the Avatar Manson. There, he meets and befriends Rangi and Kyoshi who were assinged to be his bodyguard and maid respectuly.
Upon learning that he'll be going on a diplomatic misson to negotiate with the Fifth Nation, Yun invites Kyoshi to be apart of the misson.
Escape from the Spirit World
Fall from Grace