Since 'lemon' fanfic is inappropriate, we can't really discuss the characteristics in that context. But in general, aang is known for his kind - hearted and adventurous spirit. Toph is strong - willed and independent. In proper fanfic, these traits are often explored in their relationship, like how aang's optimism might contrast with toph's more cynical view at times.
Yes, if the title 'aang is a firebender fanfic' is to be taken literally, then aang is likely a firebender within this fanfic. However, without actually reading the fanfic, there could be some sort of plot twist or alternative interpretation that might make it not so straightforward.
In non - lemon fanfiction, Aang is often portrayed as his kind - hearted self, trying to bring peace and balance. He might be shown using his airbending skills in creative ways to solve problems or face challenges. Azula, on the other hand, is usually depicted as a complex character. Her intelligence and powerful firebending are emphasized, and she may be in a journey of self - discovery, either trying to redeem herself or continue her pursuit of power in a more nuanced way.
He could meet his future self. It would be an interesting encounter as he could learn from his future experiences and wisdom. Or he might meet people who have studied his past adventures and see himself through their eyes.
One possible reason could be his strong moral and spiritual beliefs. Aang is a very spiritual character, and his culture and upbringing might have instilled in him the value of all life. Killing goes against his principles of peace and harmony.
Possibly they are random villagers who were caught in the crossfire of a conflict between different bending factions. Aang, being the Avatar and a symbol of peace, feels responsible for burying them and ensuring their spirits are at peace.
He might start by observing. Aang is a curious person, so he'd likely watch how people live, how they interact with technology. He may also try to find other benders to learn about any new developments in bending. And he'd probably use his kind heart to make friends easily in this new future environment.
One of the main challenges Aang might face could be Azula's resistance. She's a proud and powerful character. She may not be willing to accept Aang's help at first, seeing it as a weakness or a ploy. Also, her mental state is complex. Aang has to deal with her past traumas and her deeply ingrained ideas of power and control.