Obviously, Ash is one of the main characters. Pikachu would also be there with him, as his loyal partner. There might be some new characters created specifically for this fanfiction, like a strict but fair teacher at the academy or a friendly rival who Ash meets on his first day.
In this fanfiction, a possible plot is Ash getting involved in a mystery at the Pokemon academy. For example, there could be some strange disappearances of certain Pokemon items, and Ash uses his detective skills to figure out what's going on. He might also discover a secret area in the academy that holds some kind of powerful Pokemon or artifact.
Well, the story could start with Ash arriving at the Pokemon school. The school could be in a new region, filled with Pokemon that Ash has never seen before. He quickly realizes that the teaching methods are different from what he's used to. There could be a strict headmaster who initially doubts Ash's abilities because of his unorthodox way of training. But as time goes on, Ash proves himself by using his unique bond with his Pokemon. He could also participate in school tournaments, where he showcases his skills and strategies, and along the way, he might even inspire other students to think outside the box when it comes to Pokemon training.
Gary could be one of his rivals. Gary has always been competitive with Ash. Another potential rival could be a new character introduced in the fanfiction, someone who is really good at Pokemon battles and wants to prove himself better than Ash.
In the fanfiction where Ash goes to the Pokemon Battle Club School, it would be an amazing place. There could be different classes for different types of Pokemon battles, like one for water - type battles and another for fire - type. Ash would be so into it, trying to soak up all the knowledge. He might even get the chance to teach some of his own battle experiences to the other students. And of course, there would be epic battles between students, with Ash right in the middle of the action.
One possible fanfiction could be that Ash starts at the Pokemon Trainer School feeling a bit out of place. He's used to learning on the go in the wild. But at school, he meets new friends who teach him different strategies for battles. He might struggle with the classroom setting at first, like having to sit still and listen to lectures about Pokemon types. However, his real - world experience gives him an edge when it comes to practical training sessions.
His Pokemon might be a bit confused at first. Pikachu, for example, is used to their adventures on the road. But they'll soon adapt. They could make new Pokemon friends at the school too. And they'll be there to support Ash during his school challenges, like in battles or tests.
Well, in an Ash goes to Pokemon school fanfiction, there could be a lot of fun interactions. Ash is used to traveling and learning on the go. At school, he'll likely get into some friendly rivalries. He might also discover new types of Pokemon that he hasn't seen much in his travels. And who knows, he could even start a Pokemon club at school.
In this fanfiction, Ash might make new friends at Pokemon school. He could learn new training techniques for his Pokemon. Maybe he'll also face some tough competitions against other students.