ATLA: The First Metalbender Book 1: Water
|Book I| Tyler is from the Southern Water Tribe, but that's all he'll tell you about his background unless you were a close friend, like Katara or Sokka. But even he has a secret he won't tell them. Truth is, he's a natural metalbender, able to bend any metal to his will. When he joins the war, he is captured, mistaken for an earthbender, and thrown onto a metal prison ship. But when he escapes and finds a new home, more of his background that even HE didn't know about begins to unfold...
Tiny TINY hints of a one sided Katara x OC
Still gonna have canon pairings