Sasuke's development would be complex. He might start to question his entire ideology that led him to kill Naruto. He could become more empathetic towards others as a result of his regret, realizing the value of life that Naruto always represented. He might also try to make amends in the ninja world, but it would be a long and difficult journey as he has to deal with his own guilt.
After killing Naruto and regretting it, Sasuke would be in a state of turmoil. His once - single - minded pursuit of power and revenge would seem hollow. He may try to find a new purpose, perhaps in protecting the village that Naruto loved so much. His relationships with other characters would be strained, especially with those who were close to Naruto. He would have to struggle with his own identity as a killer and try to find a way to redeem himself in the eyes of the ninja world.
Sasuke's character development in this fanfic could be quite complex. Firstly, he may start to question his own motives and goals. The wrath of nature could present challenges that make him reevaluate his pursuit of power. Secondly, he could become more of a leader. If the situation with the wrath of nature affects the entire ninja world, Sasuke might find himself in a position where he has to lead others to safety or to fight against the threat. This would require him to develop his communication and teamwork skills, which he has not always been good at. Also, he might gain a new understanding of his place in the world and how his actions can have far - reaching consequences on the balance of nature.
If Sasuke kills Naruto and regrets it, it would completely shatter the hope that Naruto represents in the story. The ninja world, which was slowly moving towards unity because of Naruto, would plunge into chaos. Characters like Sakura would be deeply affected, and Sasuke himself would probably isolate himself even more. His regret might lead him on a new journey of redemption, but the damage to the world would be hard to undo.
Sasuke would become more nurturing. He'd have to learn patience which was not his strong suit before. His cold exterior would start to soften as he takes care of Naruto.
Naruto would likely become more stable. With Anko as his adoptive mother, he'd have a stronger support system. He might be less impulsive as he has someone to guide him. Sasuke, on the other hand, could start to open up more. His cold exterior might soften as he experiences Anko's love and care. He could also learn to trust others more easily.
At first, it would be really awkward. Naruto might be all over the place, trying to make the best of the situation, while Sasuke would be cold and distant. But as time passes, they would start to communicate more. Naruto's positive attitude might slowly break down Sasuke's walls. They could start training together again, like old times, but with a new layer of closeness. Eventually, they might develop a deep respect and love for each other that goes beyond friendship.
Sasuke's character often develops in terms of his loyalty. By saving Naruto, he shows that his loyalty to their friendship is growing stronger. He may start to question his previous lone - wolf attitude.
Yes, there are likely some fanfics out there with such a plot. Fanfiction is a creative space where authors explore different scenarios. However, it goes against the general narrative of the Naruto series where Naruto is more about saving Sasuke.
In many such fanfics, Naruto's character often becomes more vulnerable yet also stronger in a different sense. His pregnancy makes him rely on Sasuke more, but at the same time, he is determined to still be a great ninja. Sasuke, on the other hand, becomes more nurturing. He steps up to protect Naruto and the unborn child, showing a side of him that was not as evident before.
In a Sasuke joins Fairy Tail fanfiction, his character could develop in many ways. Firstly, the warm and friendly atmosphere of Fairy Tail might soften his cold exterior. He could start to value the relationships he builds with the guild members. Also, the different types of magic in Fairy Tail could make him question his own ninja abilities and strive to combine them with magic in unique ways, leading to a more versatile and well - rounded character.
Naruto could develop a sense of guilt and isolation. Since Itachi was a well - known figure, Naruto might face criticism or be shunned by some for killing him. This would force him to re - evaluate his relationships and his place in the ninja world. He might have to struggle to prove that his actions were for the greater good and find new allies who understand his motives.