Reincarnated in the Naruto world as Sasuke, he began to have a grudge with Naruto. In this process, he gradually comprehended the secret arts of the Uchiha clan and mastered the powerful ninjutsu, becoming one of the most powerful ninjas in the Naruto world. At the same time, he gradually learned the truth about Itachi and fought fiercely with itachi. Eventually, he became Itachi's best friend and partner to protect Kinoha Village and the ninja world together.
A really interesting plot would be Naruto, reborn as Sasuke, trying to prevent the events that led to Sasuke's departure from Konoha in the first place. He would use his knowledge of the future and his Naruto - esque determination. He might also struggle with Sasuke's memories and emotions, which could create internal conflict. For example, when dealing with Orochimaru, he would have to fight the urge to follow Sasuke's original path while also trying to outwit Orochimaru with his own Naruto - like wits.
His relationship with Sakura would be very different. Instead of the cold Sasuke she knew, she would now be faced with Naruto's personality in Sasuke's body. This could lead to a more positive and friendly relationship. His bond with Kakashi might also change as Naruto's more open and sometimes brash nature would contrast with Sasuke's more reserved self. Kakashi might be both surprised and intrigued.
In proper fanfics rather than 'lemon' ones (as 'lemon' implies inappropriate content), Naruto is known for his never - give - up attitude. He's the heart of the story, always trying to bring Sasuke back and protect his friends. Sasuke is a complex character, with his family's past haunting him, which makes him seek power and revenge at times. Sakura, she starts as a girl with a crush but evolves into a capable ninja. These characteristics are often the foundation for fanfic authors to create interesting stories that don't involve improper content.
It might be for Naruto's own good. Sasuke may believe that Naruto is on a dangerous path that will lead to his downfall. So he captures him to keep him from making bad decisions, like sacrificing himself for the village or something similar. He wants to save Naruto from himself in a sense.
In some fanfictions, Naruto might reject Sasuke because of Sasuke's continuous pursuit of power in a way that endangers others. Naruto, who values friendship and the safety of the village, could see this as a betrayal of their shared values.
It could also be due to a misunderstanding. Perhaps there is some misinformation spread about Sasuke in the fanfiction, like false rumors that he has a hidden and malevolent plan. Naruto, being someone who values their friendship deeply, would be scared at the thought of Sasuke turning into an enemy because of these untrue stories.
Yes, there might be such fanfics out there. In the Naruto fandom, with a large number of fans creating various types of stories, it's possible that some would write a story where Naruto destroys Sasuke in a way that could be seen as Sasuke - bashing. However, these kinds of fanfics may not be in line with the overall spirit of the original work which focuses on their complex relationship and growth.
In the 'naruto is protected by sasuke fanfiction', Sasuke's protection of Naruto could be multi - faceted. Sasuke, being a powerful ninja, would first of all use his physical strength and speed to block attacks aimed at Naruto. Emotionally, his bond with Naruto would make him extremely vigilant. He might sense Naruto's distress from afar and rush to his aid. In terms of strategy, Sasuke would likely plan their movements carefully when they are in dangerous situations, ensuring Naruto is always in a relatively safe position. His ability to quickly analyze a battle situation and react accordingly would be crucial in protecting Naruto.
In such a fanfiction, it could lead to a completely different power dynamic within the ninja village. Maybe Naruto's absence would give rise to new challenges and characters stepping up.