There could be some new characters too. Maybe a young orphan ninja who looks up to Naruto as a hero and wants to learn from him. There could also be a ninja from a small, less - known village who heard about Naruto's guild and saw it as an opportunity to gain more power and knowledge. And perhaps an outcast ninja who was shunned in their own village but Naruto gives them a chance in the guild because he believes in second chances.
The guild could be a place for ninjas from different villages to come together. Naruto, believing in unity among all ninjas, creates a guild that accepts members regardless of their village origin. This would cause some initial friction as old rivalries and suspicions surface. But Naruto, with his charisma and determination, would work towards building trust among the members. The guild's main goal could be to fight against a new, greater threat that endangers all the ninja villages, and they would need to put aside their differences to succeed.
Well, one possible plot could be that Natsu, after some sort of betrayal in Fairy Tail, decides to create his own dark guild. He might gather some disgruntled mages who also feel wronged by the mainstream guilds. Their goal could be to change the magic world's power structure in a more radical way, using darker forms of magic that are usually shunned. For example, they could explore ancient and forbidden magic spells to gain an edge over other guilds.
In this fanfiction, the characters would have to adapt to a more cutthroat environment. Natsu's friends from Fairy Tail who might join him in the dark guild would struggle with their new identities. They would have to learn to use magic in more aggressive and unorthodox ways. Their moral compasses would be tested as they engage in activities that are considered 'dark' in the magic world. Some might even have a complete character transformation, going from good - natured mages to feared members of the dark guild.
One possibility is that he could rewrite his own adventures in a more humorous or self - deprecating way. For example, making fun of his early failures in ninja training.
His friends like Sasuke would most likely support him. Sasuke, having walked a long path of redemption, would see Naruto's vision of an empire as a way to finally achieve the peace they both have been longing for.
The purpose could be to protect the weak. Naruto has always been about protecting those who can't protect themselves. So his organization might focus on safeguarding small villages or groups that are vulnerable to attacks from rogue ninjas or larger, more aggressive villages.
Well, in such a fanfiction, Naruto might discover a new chakra ability that allows him to create Kirin. He could be in a tough battle where his usual jutsus aren't enough. So, he taps into some hidden potential within himself to form Kirin. Maybe he combines his own wind - style chakra with some newfound lightning - style chakra he got from a special training or encounter.
If Naruto creates a lightsaber, it could be related to his connection with Kurama. Kurama's chakra is extremely powerful. It's possible that this chakra could be harnessed in a way that can mimic the energy source of a lightsaber. Naruto, being the creative and adaptable ninja he is, would then figure out how to shape and control this new form of energy into a blade, much like a lightsaber. And he would surely use it to protect his friends and the Hidden Leaf Village.
Sasuke would likely be in the group. Despite their past differences, Naruto and Sasuke have a deep bond. Sasuke's skills would be invaluable to any group Naruto forms.