They could participate in a high school Pokemon tournament. Ash would be super competitive, using his Pikachu to its full potential. May might enter with one of her cute Pokemon like Skitty. They could face off against each other in an intense battle, which would be a really exciting part of the fanfic.
In high school, Ash and May could be involved in a school play that is Pokemon - themed. Ash could be cast as a brave Pokemon trainer going on a quest, while May could be a Pokemon coordinator helping him on his journey. They would have to practice their lines and acting together, which would lead to some comical moments as Ash is not always the best at remembering his lines. This would also strengthen their friendship as they work towards a common goal outside of their usual Pokemon - related activities.
One possibility is that Ash would be a bit of a star at the Pokemon school. Since he has so much experience traveling and battling. He could inspire other students to be more adventurous with their Pokemon. Also, there could be some unique Pokemon species that are only studied at the school which Ash gets to interact with.
One possible scenario could be that Ash and May are in high school and they join the school's Pokemon battle club. Ash might be eager to show off his battle skills, while May could be more interested in learning new strategies and studying different Pokemon types for her contests. They could have friendly competitions within the club and also team up against other schools in Pokemon battles.
Well, one idea could be that Ash and May participate in a special school event. It's a competition that combines Pokemon battles and contests. They have to work together against other teams. Along the way, they face challenges that test their friendship and skills. Ash might learn some new contest moves from May, and May could pick up some battle strategies from Ash. It would be a great story of growth and cooperation for both of them.
Their high school story could involve new friendships. Ash, being his friendly self, would make friends with all kinds of students, including those who are new to Pokemon. May could use her charm and knowledge to help these newbies. And of course, there would be some kind of big mystery or threat in the school, like a group trying to steal rare Pokemon from the students, and Ash and May would have to team up to stop them.
One possible plot could be Ash starting high school in a new region where Pokemon battles are a major part of the school curriculum. He could meet new friends who have different Pokemon and battling styles, and they form a team to compete in the school's Pokemon battle tournament.
In a Pokemon fanfic where Ash trades Pokemon, a lot of interesting things can occur. He might trade a Pokemon that has been with him for a long time, like Pikachu. This could lead to a whole new adventure as he gets to know the new Pokemon he received. It could also change his battle strategies.
Maybe they start off as rivals. May wants to prove herself as a great Pokemon trainer in the fanfic, while Steven is already well - known. Their interactions could be full of tension at first. But as they face a common enemy, like a powerful and evil Pokemon organization, they start to respect each other and eventually become friends or even more. They could exchange tips on how to train and care for their Pokemon.
In such a fanfiction, Ash and May could encounter new and rare Pokemon in Unova. They might face tough battles against powerful trainers and gym leaders. For example, Ash could use his Pikachu in unique strategies against Unova's electric - type Pokemon that have different abilities compared to those in other regions.
In such a fanfiction, they might be betrayed by a so - called friend. For example, a fellow trainer could steal their Pokémon in order to gain an advantage in a big tournament. This would be a huge shock to Ash and May, and they would have to figure out how to get their Pokémon back and also deal with the sense of betrayal.
Well, in such a fanfiction, Ash and May could go on an adventure to catch a rare Pokemon. They might combine their skills, with Ash's battle experience and May's Contest knowledge.