Maybe the loss of a very dear Pokémon friend. If something bad happened to a Pokémon he was extremely close to, like it getting seriously injured or lost forever, it could be so devastating that he loses the will to continue his journey and thus gives up.
His Pokémon would be very confused and sad. They are used to following Ash on his adventures and having him as their trainer. If he gives up, they might lose their purpose and direction.
One possible reason could be a lack of time. Maybe Ash has become too busy with other aspects of life, like work or studies, and can't find the time to write fanfiction anymore.
It could be that in this fanfiction, Ash had some personal issues come up. For example, he might have received some bad news from his family back home that made him lose focus on training and eventually give it up. Another reason could be that he found a new passion or interest that diverted his attention away from training.
A common theme in such fanfictions could be Ash's adventures in Alola while building relationships with different characters. Maybe he forms special bonds with his Pokémon and the people around him in a more romantic or friendship - deepening way.
One aspect to consider in 'Ash, Champion of Alola' fanfiction is Ash's character growth. He has come a long way from his early days in the Pokémon journey. In this Alola setting, he has to adapt to new Pokémon, new training styles, and new friends. His victory as champion is not just about battles but also about his personal development and how he has influenced the Alola region. For example, his unique bond with his Pokémon in Alola might be different from his previous regions, which can be a great focus in fanfictions.
One great 'Pokemon Ash Alola' fanfiction is 'Ash's Alolan Adventure'. It has Ash making unique friendships in Alola and facing new Pokemon challenges. The story really captures the essence of the Alola region with its beautiful descriptions.
One possible fanfiction could be about Ash bringing his Charizard to Alola for a special battle tournament. Ash and Charizard would have to adapt to the new environment and battle styles in Alola. They might face off against some of the unique Alola Pokémon and trainers, with Charizard's powerful fire - type moves being a real asset but also a challenge as they try to avoid causing too much destruction in the beautiful Alola region.
Ash and Gary in Alola fanfiction often have their characters developed further. Ash's growth in the Alola region can be contrasted with Gary's development. Sometimes, fanfiction writers use this setting to explore their past rivalries in a new light, perhaps leading to a more friendly and collaborative relationship. The Alola backdrop provides a fresh and colorful canvas for their adventures.
Well, it depends on the specific fanfiction. Some fanfictions do portray Ash as smarter in Alola. They may show him having a deeper understanding of Pokemon battles, for example, being able to anticipate his opponents' moves more accurately. This could be because the Alola region has its own unique Pokemon and battle styles, and the authors want to show Ash adapting and growing in this new environment. Also, his experiences with new friends and different types of Pokemon training in Alola might contribute to his perceived increased intelligence in these stories.