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.
Sasuke's Sharingan would be a very unique ability in the Fairy Tail world. It could give him an edge in combat against wizards. For example, he could use it to predict their attacks and counter them quickly. His fire - style jutsu could be on par with some of the fire - based magic in Fairy Tail, like Natsu's Dragon Slayer magic. Sasuke could also use his ninja skills such as stealth and quick movement to surprise his opponents in this new world.
Izuku's character would develop in several ways. Firstly, he'd learn to rely on magic rather than just his physical strength and quirk. This would change his combat style. Also, the social aspect of Fairy Tail would make him more outgoing. He'd interact with a diverse group of wizards, which would expand his world view and make him more adaptable. He might start to see the value in having fun and not always being so serious about training and fighting, like the Fairy Tail members do.
Her character might become more confident. In Fairy Tail, she'd be surrounded by strong mages which would push her to improve. She could also become more outgoing as the guild has a very friendly and social environment.
One possible plot could be Sasuke initially being a bit of an outcast in Fairy Tail because of his brooding nature. But as he goes on quests with the guild members, he starts to open up. For example, he might team up with Natsu for a mission where they have to fight a powerful dark wizard. Through their battles and interactions, Sasuke learns about the power of friendship in Fairy Tail, which is very different from his past experiences in Naruto's world.
Well, initially Sasuke would be in shock. But then, he would start to absorb the love and wisdom his parents have to offer. He might become less angry and bitter. His parents could show him a different path than the one of vengeance. This would cause him to re - evaluate his goals. He could become more patient and understanding, traits he lacked before. He may also gain a new sense of self - worth, knowing that his parents cared for him deeply, and this would reflect in his actions and decisions in the future.
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.
In this fanfiction, Naruto would likely develop a new sense of family. Fairy Tail is known for its strong sense of community and family - like bonds. Naruto, who has always craved family and friendship, would thrive in this environment. His character would grow to be more empathetic as he experiences the various plights of his new Fairy Tail comrades. He might also start to use his skills in more strategic ways, learning from the battle - hardened members of Fairy Tail.
Sasuke's character could develop a deeper understanding of himself. By seeing his past self, he might realize the parts of him that he has lost or forgotten. This could lead to a more balanced Sasuke, less consumed by revenge.
In a time - travel scenario, Sasuke could learn from different eras. Say he travels to a time of great peace in the ninja world. He would be exposed to different values and ways of life, which could soften his cold exterior. He might start to value friendship and cooperation more, as he sees how effective they are in maintaining peace.
If Shirou joins Fairy Tail in fanfiction, his character might develop a greater sense of belonging. He has always been on his own journey, but in the guild, he'd be part of a team. This could lead to him being more open about his feelings and past experiences. Also, his combat skills could evolve as he trains with the other members and is exposed to new fighting styles and magical techniques. He might even start to develop his own form of magic - influenced combat, which would be a new and interesting aspect of his character growth.