Obviously, Naruto would be one of the main characters. And there could be a Pokémon trainer who raises him. Maybe someone like Ash from the Pokémon series could make an appearance as a mentor - like figure to Naruto. Also, Naruto's friends in the ninja world could interact with the Pokémon, so they could also be important characters in this fanfiction.
In this fanfiction, there might be a Kiri - native ninja who discovers Naruto when he's just a child and takes him in. This character would be an important one, as they would be the one to introduce Naruto to the ways of Kiri. Also, there could be a group of anti - Naruto shinobi in Kiri who see him as a threat to the village's traditions and try to drive him out. They would be antagonists in the story.
Well, Naruto is a given as the main character who is being raised in the Fairy Tail environment. Gray would be an interesting addition. His cool - headedness could contrast with Naruto's sometimes impulsive nature. Erza would also be a key character. She could be like an older sister figure to Naruto, teaching him discipline and how to handle difficult situations, both in battles and in the guild.
There might also be other Pokémon that interact with Ash and Lucario in the fanfiction. They could be friends, rivals, or just part of the Pokémon world that Ash and Lucario encounter during their adventures. However, Ash and Lucario are the central focus of this particular fanfiction.
Maybe a wandering merchant or traveler who discovers Naruto outside the village and takes him under their wing for a while. This character could introduce Naruto to different cultures and ways of life, which would greatly influence his character development in the fanfiction.
Well, there could be some Egyptian pharaohs. Maybe a young pharaoh who becomes friends with Naruto. They could learn from each other, with the pharaoh teaching Naruto about Egyptian governance and Naruto teaching the pharaoh about ninja skills. Another character could be an Egyptian priest who is initially suspicious of Naruto but later comes to respect him.
The plot could involve Naruto being raised in a region full of Pokémon. He may grow up learning about different Pokémon types and their abilities. This knowledge could influence his ninja training. For instance, he might incorporate the speed of a certain Pokémon into his own movement techniques. And he could also use Pokémon to communicate over long distances in a unique way, like using a psychic - type Pokémon's powers. His upbringing by Pokémon - loving people could also shape his personality, making him more empathetic towards all living beings, just like how Pokémon trainers care for their Pokémon.
Obviously, Naruto would be one of the main characters. And then there would be the elves who raise him. They could be original elf characters created specifically for this fanfiction or could be based on existing elf concepts from other works.
Obviously, Naruto is one of the main characters. And then there would be the cats that raise him. They could be a group of cats with different personalities, like a wise old cat that imparts wisdom to Naruto, and a young, energetic cat that keeps Naruto active and playful.
Naruto is a must - have as the main character. For the Pokemon world, maybe Eevee could be a key character. As for the harem, there could be new female characters created specifically for this fanfiction. They could be a mix of half - Pokemon, half - human hybrids. Also, Hinata could be part of the harem. In the Pokemon world, her shy but strong - willed nature would be an interesting addition, and she would support Naruto in his adventures.
The main characters would surely be Ash and Mewtwo. But there could also be other Pokemon that play important roles. For example, Pikachu might have a different relationship with Ash since Ash was raised by Mewtwo. And perhaps some of Mewtwo's clones could also be involved, adding more depth to the story.