Outside of ninja duties, they could have some really interesting conversations. Sakura might ask Itachi and Shisui about the Uchiha clan's history and traditions. Shisui could share funny stories from his childhood in the clan. Itachi might be more solemn in his responses but would still contribute. They could also have debates about the future of the ninja world and how they can contribute to peace, with Sakura bringing in her perspective as someone from a different background.
Sakura would likely be in awe of Itachi and Shisui's skills at first. Itachi, being the more reserved one, might be a bit distant but would gradually warm up to Sakura as he sees her determination. Shisui, on the other hand, would be more friendly and approachable. He might be the one to initiate conversations and break the ice between the three. They could have exchanges about their different ninja backgrounds.
In a fight or a dangerous situation, Itachi and Shisui would protect Sakura initially. But as Sakura grows stronger, she would start to hold her own. They would communicate through hand signals and quick glances, understanding each other's intentions. For example, when facing a group of enemies, Itachi might use his genjutsu while Shisui distracts them, and Sakura could heal any of them if they get injured. Their interactions would be based on trust and mutual respect.
Shisui is known for his cheerful and friendly nature. He would likely be the one to break the ice with Sakura and make her feel welcome in the Anbu team. Itachi, on the other hand, is more reserved. He would respect Sakura's skills but might not be as openly friendly at first. Sakura, being strong - willed, would earn their respect over time with her determination and medical knowledge.
Sakura would likely develop her combat skills further. In the ANBU environment, she would face more dangerous opponents, which would force her to become more strategic. Itachi, already a complex character, might show more of his internal struggle between his loyalty to the village and his love for his family. Shisui could develop in terms of his leadership skills, as he and Itachi might lead Sakura in missions. He could also become more jaded as he faces the darker side of the ninja world.
Shisui would likely be very calm and observant. He might interact with Sakura in a somewhat reserved way at first. For example, he could just give her a polite nod when they first meet on the train. Sakura, being more outgoing, would probably try to start a conversation. She might ask him about his travels or his skills. Shisui would then answer in a measured tone, sharing only what he thinks is appropriate.
To write a good fanfic, focus on character development. Let Sakura grow in her abilities and relationships. Show how Itachi's past affects his present actions when interacting with Sakura and Shisui. For Shisui, explore his loyalty and how that impacts the group dynamic. Also, use vivid descriptions of the Naruto world, like the Hidden Leaf Village or the battle scenes. This will make the fanfic more immersive.
Sakura, being the energetic and kind - hearted character she is, would likely try to share her lemonade with Itachi. Itachi, who has a solemn and serious demeanor, might be hesitant at first but then accept it out of politeness. This simple act could start a conversation between them. Sakura could start asking Itachi about his life and his past, and Itachi, after some hesitation, might start to share some of his story with her, leading to a deeper connection between the two characters.
One idea could be a story where Sakura, as a skilled medic, is tasked with treating Itachi and Shisui during a difficult mission. She discovers their complex pasts and bonds with them over time, leading to new alliances and friendships.
There could also be a more friendly and equal - footing relationship. They might bond over shared interests outside of combat, like a love for a certain type of flower in the village or a particular kind of food. This would bring them closer together on a personal level. Itachi, who is usually reserved, might open up more around Sakura and Shisui, and they could form a tight - knit group of friends who support each other through the difficulties in the shinobi world.
She could develop a more strategic mind. Shisui and Itachi are known for their intelligence in battle. Sakura would learn from them how to analyze situations better, plan ahead, and anticipate her opponents' moves. This would make her a more well - rounded ninja rather than just relying on her brute strength.
Sakura's evolution would be quite remarkable. She would start to think more like an Uchiha. Their way of analyzing situations and opponents would seep into her own mindset. This could make her more calculating and less impulsive in battles. Her physical strength, which she already has a good amount of, could be refined further with the training she gets from Shisui and Itachi. Her social standing in the village might also change as she is seen training with two of the most powerful and respected Uchiha. People would start to view her as a serious combatant as well as a healer, and she would have a greater influence on village matters related to security and combat strategy.
Sakura's amusement could actually make Shisui more likely to continue annoying Itachi. Since she finds it funny, Shisui might see it as a sign that his actions are acceptable and entertaining. This could potentially strain the relationship between Shisui and Itachi further if Itachi doesn't like being the target of Shisui's annoyance.