At the Northern Air Temple, Tenzin tells the story of the ancient monk Tang Xu's historic fast, inciting boredom from most of the airbending recruits apart from Otaku, who excitedly participates during the lecture due to being an Air Acolyte. Unfazed, he attempts to continue, but is interrupted by Bumi, who entertains his fellow students with Bum-Ju's help by imitating a spirit. Following his lecture, Tenzin guides Oogi through the air, amazing the recruits, who ask when they will be provided with their own flying bison. Tenzin states that riding a bison takes years of training, much to the students' dismay, and points out that there are not enough bison in the temple to accommodate all of the students. Kai notices a herd of bison flying nearby and suggests using those, prompting Tenzin to