Ash could become more curious than ever. He'd want to know all about this fanfiction world he's in. He might start asking a lot of questions, not just about the world around him but also about the people who created this fanfiction situation. He could also become a bit more cautious, realizing that things may not be as straightforward as in his original Pokemon adventures.
He becomes more nurturing. Naruto, who has always had a big heart, now channels that into taking care of his daughter. He listens to her more intently, tries to understand her feelings, and is always there to offer support and advice, just like a good father should. He might also be more patient than he used to be. For example, if his daughter is having trouble learning a new ninjutsu technique, instead of getting frustrated like he might have in the past, he'll patiently guide her through it step by step.
His confidence would probably soar. Knowing he has his parents, who are likely strong ninjas, supporting him would make him feel more secure. He might become a bit less reckless as he now has people who care about him deeply and he wouldn't want to worry them.
If Ash were to turn into a Pokemon in a fanfic, his personality would surely be affected. He's used to being in control as a trainer, but as a Pokemon, he'd have to learn to follow others' commands or work within a group. His once outgoing and friendly nature might become more cautious. He'd have to be more aware of predators and threats. And his competitive spirit might take on a different form. Instead of competing in trainer battles, he'd be competing in Pokemon - on - Pokemon battles, which could make him more aggressive or strategic depending on the Pokemon he turns into.
His life changes in many ways. Socially, he'll be part of a different circle. He'll attend grand balls and meet important people. Education - wise, he may receive a more specialized and elite form of education. Also, he'll have to follow strict rules of protocol in his daily life.
Well, he might be really confused at first. Maybe he'd start to notice strange things about the world around him that don't quite fit the normal Pokemon universe he knows. He could see people acting in ways that seem more like how fans write in fanfictions.
When Harry Potter finds out he is rich in fanfiction, his life takes a huge turn. He can now support causes he believes in. For instance, he might fund organizations that help house - elves or other marginalized magical creatures. Socially, he may become more confident as he no longer has the stigma of being a poor orphan. His relationships with his friends might also shift. He could be more generous, taking them on expensive outings or buying them amazing gifts. Overall, his entire outlook on life and his place in the wizarding world is transformed.
His personality might become more positive. Instead of being a bit of a schemer like he was with Team Rocket, he could become more helpful and honest. He might start to care more about others' feelings.
Well, Ash is known for his adventurous and curious nature. In Mewtwo's body, that adventurous spirit might be redirected. Instead of running around exploring physically, he might use Mewtwo's psychic powers to explore the minds of other Pokemon or discover hidden places in the psychic realm. His personality would also become more complex as he'd have to deal with Mewtwo's memories and emotions. He'd still be the same Ash at heart, but there would be an added layer of depth and thoughtfulness, perhaps a bit of melancholy too as he'd understand Mewtwo's pain of being created for the wrong reasons. And his interactions with other Pokemon and humans would be different. He might seem more intimidating at first because of Mewtwo's appearance, but as soon as he started to communicate, his friendly and helpful Ash - like personality would show through.
He might become more cautious. Usually, Ash is quite bold and rushes into things. But if he's in a Team Rocket - centered fanfiction, he'd likely be more careful as he's constantly surrounded by danger. For example, he'd think twice before challenging a new Pokemon or entering an unknown area.
It could be a Pikachu. Since Pikachu is often associated with Ash and could be considered a special kind of 'first' pokemon for him in a different take of the story.