Life Changing Adventure (A Zuko x Toph fic)

When Zuko, the newly crowned Fire Lord, declares a new era of peace between all nations, all things go accordingly at first. But then, Zuko faces an unlikely temptation for power, in order to protect his nation from the backlash of their past wrongdoings. Finally, Team Avatar reunites in Ba Sing Se, at Uncle Iroh's tea shop, where Katara and Avatar Aang propose to Zuko their plan to help, so Aang doesn't have to go through with that one big promise he made long ago. After Zuko agrees, he chooses Toph to be his right hand as they make their way to rewrite history and change the fate of the Fire Nation forever.