Jinora

Jinora is the firstborn child and elder daughter of Tenzin and Pema and granddaughter of Katara and the late Avatar Aang. She lives on Air Temple Island with her parents and her three younger siblings: Ikki, Meelo, and Rohan. Possessed of an avid interest in books and quiet in general, Jinora is the youngest known airbending master and has a natural affinity with spirits; prior to the reopening of the spirit portals, she was one of only a handful of humans who could communicate with and perceive spirits in the physical world. As a result, she became Avatar Korra's guide into the Spirit World. Sometime after 171 AG, she entered a romantic relationship with Kai. Jinora is a quietly reserved, intelligent, studious girl, much different from her younger, more rambunctious siblings. Out of Tenzin and Pema's four children, she is the calmest and most mature. However, she does like to tease her siblings from time to time, causing Ikki to perceive her as "mean and bossy". Although still young, Jinora displays a great amount of courage, as she was willing to exchange her soul in favor of the world's well-being when she was being used as leverage to coerce Korra into opening the Northern spirit portal, as well as prolong the separation of her soul and body in order to aid the world by finding Raava. Despite her usually calm demeanor, Jinora has shown an assertive side to her when standing up for herself and her beliefs. She argued with Tenzin when he stated that she was too young and inexperienced to receive her airbending tattoos, and also refused to leave the Republic City spirit portal after Wonyong Keum planned to exploit it.