Since I haven't read the 'ash aura of the chosen one fanfic', it's difficult to determine the main characters. But in a typical chosen - one story, there would be the protagonist, the chosen one. There might also be an antagonist who opposes the chosen one's purpose. And there could be side characters like a wise old wizard or a brave warrior who either guide or fight alongside the chosen one. In this particular fanfic, the characters related to the ash aura might play important roles too, like someone who can interpret the meaning of the ash aura.
I don't know as I haven't read it. It could be the chosen one, of course. And perhaps there are mentors or friends who help the chosen one along their journey.
The 'ash aura of the chosen one fanfic' could potentially be about a lot of things. It might be a story where the chosen one has an ash - like aura that is a sign of their impending transformation or ascension. Maybe this aura is something that has been passed down through generations in a hidden bloodline. Or it could be that the ash aura is a mark that appears when the chosen one is in the presence of a certain object or place that is crucial to their destiny. There could also be other characters in the fanfic who are either in awe of this aura or seek to destroy the chosen one because of it.
Ash is the main character for sure. Alongside him, his friends from the Pokémon world might also be significant characters. Brock and Misty could potentially be in it, continuing their adventures with Ash. Additionally, there could be some sort of Pokémon sage or elder who guides Ash on his path as the chosen one, providing him with wisdom and advice on how to use his special powers or face the upcoming challenges.
Ash is definitely one of the main characters since it's about him being the chosen one. His Pokémon partners like Pikachu are also likely to be main characters as they would be involved in his journey as the chosen one.
In this fanfiction, Gary could be an important character. Since he has always been in competition with Ash, he might have mixed feelings about Ash being the chosen one. Serena could also be a main character. She might be inspired by Ash's chosen - one journey and decide to follow him, offering her own skills and support. Professor Oak would likely be involved as well, guiding Ash with his vast knowledge of Pokémon.
Ash is almost surely a main character in this fanfic. In addition to him, there could be antagonists like Team Magma or Team Aqua leaders. Also, his traveling companions, who might be his friends or other trainers he meets along the way in Hoenn. His Pokémon, such as Pikachu, are also bound to be key characters as they accompany him on his adventures and battles.
It could be that there is a young, impressionable character who looked up to Ash Aura. After the betrayal, this character is confused and starts to question his own beliefs. There might also be a powerful mage in the story who has the ability to see the truth behind Ash Aura's actions and is trying to prevent the chaos that the betrayal has caused.
One idea could be that Ash is betrayed by his so - called friends in the Pokémon world. They might be jealous of his status as the Chosen One and team up against him. For example, Gary could spread false rumors about Ash, causing other trainers to doubt him.
His Pokemon are also main characters in a sense. They support Ash in his journey with his Aura abilities, like Pikachu who is always by his side in battles where Ash uses his Aura. And then there are other trainers and friends he meets along the way. They might not have Aura powers but they play important roles in Ash's growth and his Aura - related adventures, such as Brock and Misty who offer their own forms of support and advice.
There's no way to tell without more information. If it's a fanfic related to a superhero franchise, the main characters could be the superheroes who are chosen for a new and dangerous mission. However, if it's a fanfic for a book series about a magical school, the main characters might be students who are chosen for a special competition or event. It all depends on the nature of the fanfic.
Maybe an ancient evil spirit that has a vendetta against Ash. The spirit could possess the aura guardian and make it turn against Ash. In this scenario, the main antagonist is not really the guardian but the spirit that controls it, and the story would be about Ash fighting this spiritual evil.