There's no canonical indication that Ash uses his aura abilities to see fanfiction. Fanfiction is a concept within the fan community, not something directly related to the in - universe powers in the Pokémon world.
Well, in the Pokémon series, Ash's aura abilities are mainly used for things like sensing Pokémon emotions, connecting with them on a deeper level, and in battles. There's no mention or hint that it could be used to access fanfiction. Fanfiction exists outside the realm of the Pokémon universe's official powers and is more of a fan - created concept.
Ash in the fanfiction could learn to use aura by encountering a rare event or artifact that unlocks his potential. Or perhaps he has a series of challenging battles that force him to tap into this ability and refine his skills over time.
If it were possible, perhaps Ash could use his aura to tap into some sort of psychic network where fanfiction exists. But this is really just wild speculation as there's no basis for it in the Pokémon lore.
Well, it could be that Ash's aura has a special connection with Serena's in the fanfic world. His aura might be able to transfer some of his energy to Serena when she's weak or injured. He could focus his aura to create a protective shield around her, shielding her from attacks like from wild Pokémon or bad guys. And this way, he saves her using his aura abilities.
In this fanfiction, Ash's aura could be like an invisible shield around Dawn. His strong connection with his aura allows him to project it towards her. If there are any attacks, whether physical or from special abilities, the aura could absorb or deflect them. It's as if the aura becomes a safeguard that he can manipulate to keep Dawn safe.
One great aspect of Aura Guardian Ash fanfiction could be the exploration of Ash's latent aura powers. Maybe in these stories, Ash discovers he has a much deeper connection to the aura realm than he ever knew. This could lead to him having new abilities and forming unique bonds with Pokémon that are also attuned to the aura.
Well, it could be that Ash trains his aura in the fanfiction by facing various challenges. For example, he might engage in battles with powerful opponents. These battles force him to tap into his aura and gradually increase its strength. Also, he may receive some guidance from a wise mentor who teaches him special techniques to train his aura.
In many fanfics, Ash's Aura power starts as a latent ability. It might first be triggered by a strong emotion or a life - threatening situation. For example, in some, when facing a powerful and evil Pokemon, his protective instinct towards his team awakens his Aura. Then, as he becomes more aware of it, he starts to train it, often with the help of a mentor figure, like an Aura Guardian.
In Pokemon fanfiction, a strong Ash aura could mean many things. It might represent his strong will and determination. Ash has always been a character full of passion for Pokemon battles. His aura could be a manifestation of his unwavering spirit, which can inspire his Pokemon to perform better in battles.
It varies depending on the specific fanfiction. Some might give Ash these powers early on, while others might introduce them later in the story.
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.