Katara and Haru quickly became friends, connecting over their shared experiences in the Hundred Year War: Katara lost her mother in a raid, while Haru's father was imprisoned. Katara inspired Haru to maintain hope and keep fighting, even risking her own freedom to help Haru, his father, and other earthbenders escape Fire Nation imprisonment. In turn, when Team Avatar was in need of allies, Haru showed up for them to fight by their side.