Who could be the main character in a 'naruto banished mecenary fanfic'?

Well, in some fanfics like this, the banished mercenary might have unique abilities that set them apart. For example, they could have a special chakra-based power that was feared or misunderstood in the Naruto world. This could lead to them being banished unfairly.

It could be an original character. For example, a ninja who was born into a minor clan but had great potential. However, due to political intrigue and jealousy from a major clan, he was framed and banished. He then became a mercenary to survive. Another option could be a character who was once a part of a secret ninja organization and was banished when he disagreed with their methods. Now, as a mercenary, he returns to the Naruto world with a vendetta against those who wronged him.

It could be an original character. For instance, a ninja who was wrongly framed for a crime and banished. They would then be the focus as they navigate their new life as an assassin.

The main antagonist could be an old - school ninja who believes in the traditional and often harsh ways of the ANBU. They see Naruto's actions as weakening the village and set out to oppose him at every turn, trying to bring back the old ANBU regime.

Another option could be Kakashi. Suppose he is banished because of some incident related to his Sharingan. He has so much history and experience, and seeing him outside of the village structure, relying only on his Sharingan and his wits, would make for a great story. He could also have flashbacks to his past experiences with the Sharingan while dealing with the challenges of being banished.

Danzo might be the main villain. He's known for his underhanded tactics. He could have banished Naruto to create chaos and then sent his Root agents to destroy Konoga for some political or power - related reasons. He might see Konoga as a threat to his control over the village in some way.

It could be the very people who banished Naruto in the first place. They might fear his new - found power and try to stop him from returning to the village or from getting revenge. They would likely use underhanded tactics to try and take him down.

Perhaps Danzo could be the main antagonist. He was always a bit of a shadowy figure in the original Naruto series. In this fanfic, he might see Naruto and Sasuke as a threat to his own control over Konoha. So, he uses his influence to have them banished. He could be secretly working with external forces to further his own agenda while keeping Naruto and Sasuke away from Konoha.

Danzo could be a great antagonist. He might see Naruto's new married status as a threat to his power - he could spread false rumors that lead to Naruto's banishment. He would then try to eliminate Naruto and his wife to ensure his own control over the village remains unchallenged.

It could be a powerful Thalmor agent. The Thalmor are often seen as the bad guys in Skyrim, and if Naruto shows up, they might see him as a threat to their plans of domination. They could use their influence to get Naruto banished and then try to hunt him down.