Obviously, Ash is one of the main characters. He is usually at the center of the story, using his skills as both a Pokemon trainer and a ninja. Pikachu is also a very important character, often using its electric powers in combination with Ash's ninja - like strategies. Sometimes, other trainers like Brock and Misty can also be important characters, providing support or joining in on Ash's ninja - themed adventures.
His Pokemon are also main characters in a sense. They support Ash in his journey with his Aura abilities, like Pikachu who is always by his side in battles where Ash uses his Aura. And then there are other trainers and friends he meets along the way. They might not have Aura powers but they play important roles in Ash's growth and his Aura - related adventures, such as Brock and Misty who offer their own forms of support and advice.
One interesting Pokemon Ash Ninja fanfiction could be where Ash uses his ninja skills to quickly traverse the Pokemon world and catch rare Pokemon. For example, he might use stealth like a ninja to approach a very shy Pokemon that is difficult to catch. Another could be a story where Ash teams up with a group of ninja - like Pokemon trainers and they go on an epic adventure to save the Pokemon world from a new and powerful threat.
Maybe Team Rocket could have a new member who is a ninja. This new member could be Ash's main rival. They would try to steal Ash's pokemon in more sneaky and ninja - like ways. And Ash would have to use his ninja skills to protect his pokemon and defeat this new rival from Team Rocket.
Ash's friends are often in these fanfictions too. Brock might offer his knowledge about Pokemon care and training, which could be useful for Ash's new coordinator journey. And Misty could provide her own insights, perhaps from a different perspective as she has her own experiences with Water - type Pokemon. Sometimes, new characters might be introduced as well, like other coordinators who become Ash's rivals or friends in the coordinator world.
Since it's an 'ash the pokemon fanfiction', Ash is the central figure. But it could also feature his friends from the original series like Misty and Brock. And of course, the villains he encounters would be important characters too. There may be new characters created by the fanfiction writer, such as a mysterious trainer who has a rare and powerful Pokemon that Ash has to face.
Obviously, Ash is one of the main characters. Since it's about him being a legendary Pokemon in this fanfiction, he's central to the story.
A young and determined trainer named Kai could be a main character. He has a Pikachu that he has trained to use ninja - like moves, such as lightning - fast dodges. Kai is always eager to take on new challenges and prove himself as a great pokemon ninja trainer.
Obviously, Ash is one of the main characters. He's the protagonist who has a passion for pokemon and is always eager to become a pokemon master. And the legendary pokemon he encounters or befriends would also be important characters. For instance, if it's Lugia, Lugia would play a major role in the story as it's a very powerful and mysterious pokemon.
Ash is obviously one of the main characters. He is at the center of the harem concept. Then there would likely be a group of human characters who are part of his harem, though their specific identities can vary greatly depending on the fanfiction.
The main characters are Ash and Lance. Ash is a well - known Pokemon trainer from the Pokemon series, always eager to learn and grow. Lance, on the other hand, is a powerful and respected figure in the Pokemon world.