Since it's a crossover, Naruto is likely to be one of the main characters. But depending on what it's crossed with, there could be other main characters from the other universes too. For example, if it's crossed with Harry Potter, Harry Potter could also be a main character.
In this 'naruto hundred crossover fanfiction', Naruto is bound to be a central figure. However, as it involves a hundred crossovers, there could be a whole host of other main characters. If there are crossovers with Star Wars, Luke Skywalker could be a main character in those parts of the story. Or if it crosses with the world of Alice in Wonderland, Alice could also be a significant character. It really depends on the different crossovers and how the author chooses to develop the story.
One character that would be really cool to include is Edward Elric from Fullmetal Alchemist. His knowledge of alchemy and his quest for the Philosopher's Stone could cross paths with Naruto's search for power to protect his village. Also, Saitama from One - Punch Man. It would be hilarious to see Saitama's nonchalant attitude towards fighting in the world of Naruto, where battles are usually more intense and drawn - out.
Definitely Naruto himself. He's the main character of the Naruto series, so he has to be there. In a crossover with Attack on Titan, he could meet Eren. Naruto's determination and Eren's drive to protect his people could make for an interesting dynamic between them.
Naruto's son is the central figure for sure. And if it's a crossover with the Dragon Ball universe, characters like Goku or Vegeta might also be important characters. They could interact with Naruto's son, perhaps training him or being his rivals in some way. This would create interesting dynamics between characters from different fictional backgrounds.
Most likely Naruto would be one of the main characters. Depending on the crossover, it could also include characters from the other franchise involved in the crossover.
It could be about a fan - made story that combines Naruto with a hundred other elements from different universes or stories. For example, it might crossover Naruto with other popular anime like One Piece or Bleach, or even with elements from Western fantasy stories.
Obviously, Naruto and Yugito are the main characters. Naruto is the protagonist from the original Naruto series, a hyper - active and determined ninja. Yugito, on the other hand, is the two - tails jinchuriki. She has a strong will and unique abilities related to her cat - like form.
Definitely Naruto would be a main character. He is the protagonist of the original series and would be the one to drive the story forward in the crossover. Then, perhaps a new character could be introduced who has a special connection to the bone - related aspect. This character could be from another world or a long - lost clan in the Naruto universe. Also, Gaara could be a main character. His sand powers could interact in interesting ways with the bone - related elements, like his sand protecting him from bone attacks or being able to incorporate bones into his sand defenses.
Obviously, Naruto would be one of the main characters. He's the protagonist of the Naruto series and would be the main link to the ninja world in this crossover. Another could be a young Kitsune, maybe one that's just coming of age in the Kitsune world. Their paths cross, and they have to learn to work together.
Obviously Naruto would be one of the main characters. Since it's a Naruto - based crossover, he's the central figure from the Naruto universe. And then there could be a god or gods. It could be a well - known god from a particular mythology, like Zeus from Greek mythology. He would bring his own set of powers and personality to the story.
Obviously Naruto himself would be a main character. He could be joined by Sasuke. In a crossover with 'One Piece', Luffy could also be a main character in the fanfiction, as he is the captain in 'One Piece' and would bring his own unique charm and abilities.