There could also be other members of the pantom guild who play important roles. For instance, the guild master might be involved in guiding the ace and making decisions that affect the story. They could be an older, wiser character with a lot of knowledge about the guild's history and secrets. And then there might be a rival within the guild who challenges the ace for their position, adding some drama and conflict to the story.
Sakura or Sasuke from the Naruto side could also be main characters in this fanfiction. If the story is about a collaboration between the two worlds, they would be involved in the action. Sakura could use her medical skills and combat abilities, while Sasuke's Sharingan and powerful jutsu would be useful in battles against the threats that come from the pantom guild's side or the new challenges that emerge from the combination of the two worlds.
Another plot might involve the ace of the pantom guild forming an unlikely alliance with Naruto and his friends. They could team up to face a common enemy that neither group could defeat alone. For example, they might have to take on a powerful new villain who has a unique ability that combines the skills from both the Naruto universe and the pantom guild's world. This would lead to a lot of character development as they learn to work together and understand each other's ways.
In most Naruto Ace fanfiction, Naruto and Ace are front and center. But sometimes, other characters from both universes might also play important roles. For instance, Sakura could be involved if the story is set in the Naruto world and she has to deal with the arrival of Ace. Or Luffy might be mentioned in relation to Ace's backstory and how it affects his relationship with Naruto.
Well, Naruto is often a central figure as he is the main character in the Naruto series. In the context of the fanfiction with Sabertooth, Sting would also be a main character. He has his own set of powers and a distinct personality. Then there might be other characters like Kakashi from Naruto who could play important roles, and from Sabertooth, Minerva could be involved. They all contribute to the overall story, with their different skills and goals.
There's also 'Phantom Guild's Naruto'. This fanfiction focuses on how Naruto's presence changes the dynamics of the Phantom Guild. It delves deep into the relationships he forms with different guild members, like how he befriends some of the more mysterious characters. It also has some great action scenes where Naruto combines his jutsu with the guild's magic.
Naruto himself is often a main character. He's usually the one who stands up against the dark guild's evil plans. Sasuke might also be involved, as his power and sometimes ambiguous moral standing can add interesting dynamics when dealing with the dark guild.
Naruto and Ace are the obvious main characters. Naruto as the protagonist of his own world, and Ace whose memories are the central theme. However, it's possible that the fanfic also focuses on some of the antagonists from Naruto. For instance, Orochimaru might be interested in Ace's memories for his own evil purposes. This could lead to new conflicts and alliances within the story. Additionally, side characters like Shikamaru might be involved as they are often used to provide different perspectives and strategies in the Naruto series.
Lucy could also be a main character. She could provide support to Ace, perhaps with her celestial spirit magic. And they could develop a unique friendship or partnership as they face different challenges in the Fairy Tail world.
In the 'Naruto Saves Luffy and Ace Fanfiction', the main villains might include the World Government from One Piece. They have a lot of power and resources and are often against pirates. Also, there could be some rogue ninjas from Naruto's universe who are attracted by the chaos and want to take advantage of the situation. These villains would pose a great threat to Naruto's mission of saving Luffy and Ace, making the story full of tension and conflict.
It could be the leader of the dark guild. This person would likely have a very different ideology from Naruto's. Maybe the leader believes in using extreme and unethical means to gain power, like sacrificing innocent lives for dark magic. Naruto would constantly clash with this leader as he tries to uphold his own values.
The combination of two different and popular universes. Naruto's ninja world and the Phantom Guild's magical world are both full of unique elements. When combined in fanfictions, it creates a whole new set of possibilities for stories.