A possible fanfic could focus on a parallel universe where Itachi and Sasuke are not bound by the same clan conflicts. In this universe, they could meet in a more peaceful setting, like a small village. Their relationship could develop gradually as they discover shared interests. For example, they might both be interested in learning about ancient ninja arts, and through this common ground, a yaoi - inspired relationship could start to form.
Their relationship could become more complex. On one hand, they have achieved their goal together, but on the other, Sasuke might feel guilty for killing his brother with Naruto's help. Naruto, in turn, might worry that Sasuke will go back to his old ways. So, while they have this new connection, there could also be new tensions and insecurities in their relationship.
Writers often vary in how they portray the relationship. One way is through their communication. In some fanfictions, they have more open and friendly conversations as kids, while in the original story, there are always undertones of mystery. Another difference could be in their physical interactions. For example, some writers might have them hugging more often as young brothers, showing a closer emotional bond. Also, the level of trust can be depicted differently. In some fan works, Sasuke trusts Itachi completely from the start, which is a contrast to the real story where trust is gradually eroded.
In this kind of fanfiction, Itachi might use his powerful Sharingan abilities. He could perhaps create illusions to mislead Orochimaru and his minions, then quickly snatch Sasuke away. For example, he could make Orochimaru think that Sasuke is in a completely different location while he secretly approaches and rescues him.
In many fanfictions, Sasuke starts as a character full of anger and a thirst for revenge. But in the context of a relationship with Itachi, he begins to soften. He starts to see Itachi in a different light, beyond just the person who killed their clan. Itachi, on the other hand, is often portrayed as a complex figure with many secrets. In these fanfictions, his love for Sasuke makes him more vulnerable and human. For example, in some stories, he reveals his true motives to Sasuke, which changes their dynamic.
Their relationship could have a positive impact on Sasuke. Itachi could use his friendship with Sakura to try and get closer to Sasuke again. Sakura, being Sasuke's teammate, could act as a bridge between the two brothers. She could encourage Sasuke to open up to Itachi, and Itachi could use this opportunity to try and make amends for his past actions. This could lead to a more positive family dynamic for Sasuke.
If Naruto was Itachi's twin brother in this fanfiction, Sasuke's relationship with both of them would be extremely complex. Naruto would be Sasuke's family in a different way than just a friend. He might be more protective of Sasuke from the start. And Sasuke would view Naruto not just as a rival to surpass but also as part of his family's mystery. Since Itachi was Sasuke's brother, Naruto being Itachi's twin would put Naruto in a strange position in Sasuke's eyes, perhaps a mix of suspicion and a longing for family connection.
Naruto's relationship with Sasuke would likely have a new layer of respect. Naruto, having been trained by Itachi, would understand the Uchiha clan more, which is a big part of Sasuke's identity. This could make Sasuke see Naruto in a different light too. Instead of just seeing him as a rival, he might start to view Naruto as someone who is also connected to his family in a way. They could start to communicate better, with Naruto being able to speak more knowledgeably about Sasuke's family and their history.
Their relationship with Sasuke would be very different. Naruto might not look up to Itachi as much as in the original story, and Itachi might not see Naruto as a potential threat to Sasuke's growth. Instead, they could both be like older brothers to Sasuke, guiding him in different ways.
Sasuke and Itachi's story begins with Itachi being an older brother who Sasuke looked up to. But then came the fateful night when Itachi killed the Uchiha clan. Sasuke was filled with hatred and vengeance. He left the village to become stronger. Itachi, on the other hand, joined a group called Akatsuki but was still secretly looking out for Sasuke. As Sasuke grew stronger, he finally faced Itachi in battle. Itachi used his last strength not only to fight Sasuke but also to transfer some of his powers to him. Later, Sasuke found out that Itachi was actually a hero who had made the ultimate sacrifice. He had to live as a villain in Sasuke's eyes to protect the village and his little brother. This revelation changed Sasuke's perspective on life and his goals.