It could be a rogue ninja from within Konoha who doesn't want Naruto to return because he fears Naruto's growing power will disrupt his own plans for power within the village.
One possible plot twist could be that Naruto is being taken back not for a warm welcome but as a suspect in some false accusations. Maybe there are hidden forces in Konoha that want to frame him to gain power.
In a 'konoha wants naruto back fanfic', perhaps there's a prophecy that says only Naruto can save Konoha from an impending doom. The villagers, who once shunned Naruto, now understand his importance. They start a campaign to bring him back. Tsunade could be leading this effort, offering Naruto things like a proper apology for how he was treated in the past and a high - ranking position in the village.
Definitely Naruto himself. He is the one Konoha wants back, after all. And then there would be his old friends like Sasuke. Sasuke might play an interesting role, either helping Konoha get Naruto back or being a bit hesitant because of his own complex relationship with Naruto. Also, characters like Iruka - sensei, who has always been like a father figure to Naruto, would be important. He could be the one who first realizes how much Konoha needs Naruto and starts the ball rolling to get him back.
Naruto would probably be conflicted. On one hand, he has a deep love for Konoha, his home. But on the other hand, he might have been hurt by the past events that led to his departure. He could initially be hesitant, but eventually be swayed by the thought of seeing his friends again.
Well, it could go in many directions. Maybe Naruto starts a quest to find a way to bring peace to the ninja world on his own terms. Or perhaps he has to deal with the consequences of leaving Konoha and tries to prove his intentions were pure.
Well, it could be that Naruto leaves because he realizes that Konoha's ways don't align with his ideals anymore after that intense mission. Or perhaps there are hidden threats that force him to go away for the greater good.
One possible reason could be for his safety. Konoha is a well - protected village with many skilled ninja. She might believe that leaving him there would ensure he has the best chance at survival and growth as a ninja. Also, she may have some mission or obligation that forces her to leave him behind, perhaps something related to the greater good of the village or the ninja world in general.
The 'The Sealmaster of Konoha' Naruto fanfic is likely to be an interesting piece of fan - created work. It probably focuses on a character who is a sealmaster in the village of Konoha. Fanfics like this often explore new abilities, relationships, and storylines within the Naruto universe. For example, the sealmaster could have unique sealing techniques that help in battles or protecting the village.
Maybe in the fanfic, Naruto has faced too many political intrigues within Konoha. He has always been loyal to the village, but if he constantly encounters backstabbing or unfair treatment from some of the village's leadership or clans, it could lead to his weariness.