The combination of two different concepts. Pokémon and ninjas are both very popular, and when combined in fanfiction, it creates a unique and exciting world. For example, seeing Ash use ninja moves while battling Pokémon adds a new layer of action and strategy.
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.
One popular Ash is a Ninja fanfiction is 'The Ninja Ash Chronicles'. It has an interesting plot where Ash combines his Pokémon training skills with ninja - like abilities. Another one could be 'Ash: The Ninja Trainer' which focuses on Ash's journey in a world that values ninja arts as much as Pokémon training.
One idea could be Ash using his ninja skills to quickly catch pokemon. For example, he might use stealth to approach rare pokemon without scaring them away.
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.
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.
It could be a former Leaf Village ninja who left due to some sort of disagreement. Maybe someone who didn't agree with the village's leadership or its way of training young ninjas.
One interesting masked ninja is Shinji. He is a masked character in fanfiction who was once a normal ninja but got cursed by an ancient evil. Now, with his masked identity, he tries to find a way to break the curse while also using his new - found dark powers for good in the Naruto world. There's also a masked ninja named Yuki. Yuki is a snow - style user and her mask is made of ice crystals. She is on a quest to find the origin of her ice - based powers. Another is Hikaru, a masked ninja with the power of light, who is often at odds with the darker elements in the Naruto fanfiction world.
Well, Shikamaru Nara pops up a lot in fanfiction. His intelligence and laid - back attitude make for interesting stories. Rock Lee is another common character. His determination and unique fighting style are great for fanfiction plots. Gaara of the Sand is also frequently used, especially stories exploring his redemption and growth.
They might have mixed feelings. On one hand, it could be a nostalgic read for those who fought in the war, seeing their experiences fictionalized. On the other hand, they may be critical. For example, if the fanfiction misrepresents a certain battle strategy or a ninja's role in the war, they would likely be annoyed. Also, they might worry that the younger generation could get a wrong idea about the real and brutal nature of the fourth ninja war from the fanfiction.