For the banished mercenary, his character development can be made interesting by exploring his backstory. If he was banished because of a misunderstanding, gradually revealing the truth behind it can be a great way to develop his character. He might initially be a lone wolf, but as he gets involved in various adventures, he realizes the importance of having comrades. His views on the shinobi way could change over time. For instance, he might start off believing that only power matters but then, after seeing the selfless acts of others, he begins to understand the value of things like loyalty and friendship. This transformation from a jaded mercenary to someone with a more positive outlook on the shinobi world would be very engaging.
Well, his life changes in many ways. Firstly, he has to find his own clients as a mercenary, which is very different from his village - assigned missions. He probably has to travel to different regions and learn about new cultures. Also, without the village's resources, he has to take care of his own equipment and training. He may form alliances with other outcasts or mercenaries. And he might develop a more cynical view of the ninja world, since he was banished from the place he once called home.
A possible plot could involve the banished mercenary being from a long - lost clan. The reason for his banishment was a false accusation by a rival clan. As he wanders the Naruto world as a mercenary, he discovers clues about his clan's true heritage and power. He then uses his skills as a mercenary to gather allies and resources to prove his clan's innocence and restore its honor. Along the way, he crosses paths with Naruto and his friends and they either help or hinder his quest depending on the situation.
He might meet other banished shinobi who have formed their own small community. They could teach him different techniques that are not known in Konoha.
In such a fanfiction, Naruto might gain unique sage powers that are different from the normal sage mode in the original series. He could use these powers to protect a hidden village of outcasts that he discovers during his banishment.
Well, perhaps Naruto is banished due to a false accusation. In his exile, he encounters a group of outcasts who follow the ways of the Onikage. They see Naruto's potential and offer him a place among them. Naruto at first is hesitant but as he gets to know their cause, which might be about protecting the forgotten and oppressed, he decides to embrace the role of the Onikage. He then uses his newfound power and influence to try and change the ninja world from the outside.
In such a fanfiction scenario, Naruto might bring a whole new style to being a Kage. He could use his out - of - the - box thinking and never - give - up attitude to reform the village in ways traditional Kages might not have considered. For example, he could focus more on rehabilitating rather than just punishing rogue ninjas, given his own experiences of being an outcast.
Well, if Naruto were banished and became Raikage in fanfiction, it would be a huge shift. He'd bring his own style of leadership. His experience in Konoha would influence how he runs the Hidden Cloud. Maybe he'd introduce new training methods like he learned from Jiraiya, and also promote more unity between the different ninja villages. He could also use his Nine - Tails chakra in unique ways to protect the Cloud Village.
There could be other ninja villages that see Naruto's new powers as a threat. They might form alliances to oppose him, fearing that he will use his god - like abilities to dominate them. Also, there might be dark forces or ancient evils that awaken because of Naruto's transformation. These entities could oppose him as they try to maintain the balance of power in their own dark ways.
In this kind of fanfiction, Naruto might gain extraordinary powers that are god - like. He could use his newfound powers to reshape the ninja world in ways that were previously unimaginable, perhaps creating a more just and peaceful place.