Maybe through new jutsu or abilities. The fanfiction could give Naruto some unique power that allows him to communicate or negotiate with the Nine - Tails on a different level. He could use this power to show the Nine - Tails a different perspective, like the potential for harmony between them instead of constant struggle.
Yes, in some fanfictions, Naruto is often depicted as having a very special connection to the Nine - Tails that goes beyond the normal relationship in the original story. For example, he might be able to fully control the Nine - Tails' power in ways not shown in the canon, or they could have a mental bond that allows for unique forms of communication and cooperation.
His character could develop in terms of his understanding of power. Controlling the Nine - Tails means dealing with a huge amount of raw power. Naruto might start to realize the responsibilities that come with such power. He could become more mature and less impulsive as he learns to use the Nine - Tails' power wisely. For example, he might think twice before using it in a situation where it could cause more harm than good. Also, his relationships with others in the village could change. Some might be in awe of his new power, while others might be a bit afraid. Naruto would have to navigate these new dynamics and in the process, grow as a person.
Another unique exploration could be through a shared goal that is not related to the main Naruto plot. For example, they both want to protect a special place in the spirit world that has significance for the Nine - Tails. To do this, they have to work together in a way that they haven't before. Naruto has to use his human skills and the Nine - Tails has to use its tailed - beast powers in harmony. This would show a different side of their relationship, one based on mutual respect for each other's abilities.
In fanfiction, Naruto's protectiveness towards the Nine - Tails can stem from multiple reasons. Firstly, he has had a long journey of co - existing with it. They have a symbiotic relationship now. Secondly, Naruto has seen the power of the Nine - Tails and how it can be misused by others. He doesn't want that to happen. He also respects the Nine - Tails as a powerful entity. When it comes to threats against the Nine - Tails, Naruto uses his skills and his bond with it to safeguard it. He might even negotiate with others on behalf of the Nine - Tails to ensure its safety and well - being.
At first, Naruto might see the Nine - Tails as just a source of power, something that makes him strong. But as he grows, he starts to see it as a part of himself, an entity with its own feelings and history.
One implication is the change in power dynamics. If Naruto is the Nine - Tails, he would be incredibly powerful, which could lead to different story arcs where he is either feared or revered. He might also face new enemies who are interested in his unique form.
One key point could be the initial confrontation. Naruto has to face the Nine - Tails' wrath head - on. This is a dangerous but necessary step as it sets the stage for their relationship. He might get seriously injured in this encounter but also learn a great deal about the Nine - Tails' power and nature.
Naruto's friends could also be of great help. Sasuke, despite their complex relationship, might have some knowledge or abilities that could contribute. Sakura, with her medical skills and her growth as a ninja, could support Naruto in his training. And even his other friends like Shikamaru, who is known for his intelligence, could come up with strategies for Naruto to better approach the task of controlling the Nine - Tails. The entire Konoha village in a way could also be seen as a helper, as it provides the environment and resources for Naruto's growth.