After The Last Airbender event ended, the Fire Nation has accepted the defeat and suffered many losses, but it seems that the evil spirit has not entirely disappeared. As Zuko came to the throne, he began building a stronger empire. To mark the return, Air Nomads have been wiped out on the world map for a short time. The Earth Kingdom tried to help, but this made them the next target that the Fire Nation was aiming for. Aang realized this too slowly. As an Avatar, you need to stop the evil that Zuko caused quickly.
