Sasuke's reaction could be complex. At first, he would be enraged. After all, the Rinnegan is a symbol of his power and his journey to gain strength. However, he might also have some mixed feelings. He and Naruto have a deep bond, and he might wonder if Naruto had a good reason for taking it. But overall, his initial reaction would likely be one of fury and a desire to get his power back.
Well, it could lead to a major shift in the power balance among the characters. Sasuke would be weakened without his Rinnegan, and Naruto would have to deal with the new power. There might also be some internal conflict within Naruto as he tries to come to terms with using Sasuke's power. Maybe he would feel guilty at first, but then realize it's for the greater good. Also, other characters like Kakashi or Sakura might have different reactions. Kakashi could be worried about Naruto being corrupted by the power, while Sakura might be more concerned about Sasuke's well - being without his most powerful ability.
In fanfics where Naruto has Sasuke's eyes, his abilities would be altered significantly. The Sharingan is known for its power in genjutsu, so Naruto might become more proficient in that area. He could use genjutsu to deceive his opponents in new and unexpected ways. Moreover, the Sharingan's ability to predict an opponent's moves would blend well with Naruto's already great combat instincts. This combination could make him nearly unbeatable in battle, as he would be able to anticipate attacks and counter them with his own powerful jutsus.
Well, it could involve some intense battles and emotional moments. Maybe Naruto shows off new skills or strategies to defeat Sasuke and then convinces Sakura to be with him.
Well, it could start with Sasuke being in a really dangerous situation where he's about to lose his eyes but Naruto intervenes. In the process, some sort of jutsu backfires and Naruto ends up with Sasuke's eyes. This would cause a huge shift in Naruto's relationships. His friends would be both worried and curious. And Naruto would be on a journey to master these new eyes while also trying to find a way to give them back to Sasuke if possible.
The main character of the book,"The Second Generation of the Wood Leaf," was a transmigrator. He became the experimental subject of the Thousand Hand Pillars and the Uchiha Spot. He had a Shura Eye and a White Eye. He was Sasuke's cousin. I hope you like my recommendation. Muah ~
If Naruto had Sasuke's eyes in fanfics, it might make him more brooding. The Sharingan has a lot of baggage associated with it in Sasuke's story, and Naruto might take on some of that darkness. But at the same time, he would also be more in tune with Sasuke's experiences, which could strengthen their bond in a different way.
One possible plotline could be that Naruto is somehow influenced by a dark power. This power makes him believe that by taking Sasuke's eyes, he can gain ultimate power to protect the village. So, he sneaks up on Sasuke when he's vulnerable and steals his eyes. But then, he realizes the horror of what he has done and has to deal with the guilt and the consequences from both his friends and the village.
One heartwarming moment could be when Kakashi stays up all night to help Naruto train for a crucial mission. Another might be when he takes Sasuke aside after a tough battle and gives him some words of comfort and wisdom.
Naruto might become more brooding. Sasuke's eyes are often associated with his more complex and sometimes darker emotions. With those eyes, Naruto could start to see the world in a different light, one that's perhaps more cynical. He might also become more isolated as he tries to figure out the new powers on his own, not wanting to burden his friends with his confusion.