Yun
She is for an au i made purely for self indulgence and for my child self, its called the Wild Wind Duo au. It's an au where my oc exists in the show, hate it if you want, but im doing this for me lol
The oc in this au is named Yun, she is a strong airbender, a prodigy, but she often has trouble controlling the powerful winds she creates, often leading to destruction.
(Also yes I ship her with Aang)
In this au where she exists, she is introduced in Book 2 Episode 12, where Aang discovers her among the refugees and reunites.
She is from the Western Air Temple, but commonly traveled around, sometimes alone and sometimes with a friend, that friend usually being Aang.
She was there to see Aang when the Southern Air Temple was attacked, thus she witnessed the carnage. She watched her Sky Bison, Caihong, lose her life in the devastating attack while trying to get Yun to safety. When Yun was well hidden, she begged to the spirits, and they granted her the safety of staying in the Spirit World, where she slept till the Avatar returned.