Well, perhaps Ash has made some really good friends in Alola, like his classmates at the Pokémon school. Dawn arrives in Alola and is a bit intimidated by all the new things. But Ash is there to introduce her to everyone. They decide to team up and enter a special two - person Pokémon battle event in Alola. Their combined skills and the Pokémon they've trained over the years make them a formidable team. During their time together, they also discover a new type of Pokémon evolution that is exclusive to Alola, which adds to the excitement of their reunion adventure.
One possible story could be that Ash is in Alola, training hard as always. Dawn, who has been traveling on her own journey, hears about the unique Pokémon in Alola and decides to visit. By chance, they meet at a local Pokémon center. They are both overjoyed to see each other. They start sharing their experiences, with Ash telling Dawn about his adventures in Alola and the new Pokémon he has encountered. Dawn then decides to stay in Alola for a while to explore with Ash, and they have all kinds of new adventures together, like participating in Alola - style Pokémon battles and exploring uncharted islands.
In this fanfiction, Ash could be in the middle of a big Pokémon tournament in Alola. Dawn, who has been following his progress from afar, travels to Alola to surprise him. When they reunite, it's an emotional moment. They quickly fall back into their old rhythm of traveling together. They might go on a quest to find a rare and mysterious Pokémon that is said to only appear in Alola. Along the way, they help local trainers and learn more about Alola's rich culture and traditions related to Pokémon.
A plot twist could be that when they reunite, they find out that there is a dark force at work in Alola that is affecting the Pokémon. This force seems to be related to some ancient Alolan legend that they have to figure out. Another twist could be that one of them has a new, mysterious Pokémon that has powers they don't fully understand yet, and this Pokémon plays a crucial role in their adventure in Alola. Maybe it can communicate with a certain type of Alolan spirit Pokémon that no one else can.
There's a fanfiction called 'Dawn in Alola: A New Beginning with Ash'. In this one, Dawn arrives in Alola to study different Pokémon training styles. Ash is already there, and they end up sharing their experiences. It shows how they both grow as trainers in the Alola region, with lots of cute Pokémon interactions along the way.
It could also be due to some external influence. Perhaps an evil organization has manipulated Ash in some way, forcing him to act against Alola. They might have used mind control or blackmailed him with something he holds dear, like the safety of his Pokémon.
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.
Well, it could be about Ash exploring the unique Pokémon in Alola. Maybe he discovers new forms of old Pokémon and has exciting battles with local trainers.
A fanfiction about their first kiss might be set during a big Pokemon tournament. Ash and Dawn have been supporting each other throughout the competition. After Ash wins a crucial battle, Dawn is so proud of him that she can't hold back her feelings anymore. They find a quiet corner backstage, and with a flurry of emotions, their lips meet. This moment could be described in great detail, with the author focusing on their racing hearts, the look in their eyes, and the overall atmosphere of excitement and newfound love.
Well, they could have an epic battle side by side again. Maybe they face a powerful new enemy that only their combined skills can defeat. Ash could show how much he's grown since they last parted, and Greninja might have some new moves or abilities too.
It could be Gary. Gary has always been a rival to Ash. Maybe in this fanfiction, Gary gets jealous of Ash's progress and decides to betray him by making false accusations to the Pokemon League about Ash using illegal training methods.
A fellow trainer in Alola could betray Ash. This trainer might be envious of Ash's success as a champion. He could secretly work with Team Skull or some other antagonists to undermine Ash. For instance, he might give false information to Ash about a battle location, leading Ash into a trap.
In such a fanfiction, perhaps Ash is betrayed by his so - called friends in his original region. They might steal his Pokemon or exclude him from important battles. Moving to Alola, he could start a new journey. He might meet new Pokemon and friends like Lillie and Hau. He'll have to regain his confidence and prove himself all over again in the Alola region.