Heimat: a place that you can call home; a sense of belongingness, acceptance, safety and connection to homeland
A decade has passed after the final battle between the Avatar and the Fire Nation, a decade after the defeat of their Fire Lord. It is a time of prosperity for most, but the crimes commited during the war couldn't be reversed. Benders were taken away from their families, people were slaughtered, their belongings, homes and land taken away. This, had been the instance when it came to the northwest part of the Earth Kingdom, that had went on to become the Fire Nation colonies.
The people of the Fire Nation and the Earth Kingdom lived on in the land that was given to them and gradually, they became one. They collaborated and cooperated in order to live and so they got richer, learnt to depend on each other for their survival. By the end of the war, the people, even though they came from different backgrounds, were one. A decade after the end of the war, the Avatar is commanded to solve the matter of whether the former Fire Nation citizens need to move or not.
Aang believes the nations need to be separated. The people in the colonies do not, hatred starts to grow in their hearts. The Avarar will need the help of a companion more than any other time, and there is no better person to aid him than the secret waterbender that's part of the Fire Nation fleet, the woman who risked her own life to get him to safety, even though this had been the first time they had met in their lives.
NOTE: Any characters that do not appear in Avatar: The Last Airbender belong to me. The atla universe belongs to the creators.
Water. Earth. Fire. Air.
Long ago, the four nations lived together in harmony.
Then everything changed when the Water Tribe attacked.
Only the Avatar, master of all four elements, could stop them. But when the world needed him most, he vanished.
A hundred years passed, and the Water Tribe continued their relentless conquest. Their powerful waterbenders, with their mastery over ice and the sea, devastated the lands, flooding cities, and freezing entire armies in their path. The Earth Kingdom, though strong and enduring, struggled to resist the unending onslaught of the Water Tribe's forces.
Some people believe that the Avatar was lost forever, taken by the tides of time.
But I believe the Avatar will return to save the world.
1000 years after Avatar Aang era.