In this fanfiction, Itachi and Shisui may offer Sakura strategic training. They are experienced ninjas who understand battle strategies well. They could train Sakura to analyze her opponents' weaknesses, plan her attacks in advance, and make better decisions during combat. Also, they might train her in mental fortitude, teaching her how to stay calm under pressure and not be easily distracted during battles.
They could give her combat training. Teach her how to use her chakra more effectively in battle and show her some new ninjutsu.
In this fanfiction, a possible plot highlight could be a training tournament among Sakura, Shisui, and Itachi. This would allow Sakura to test her skills against two of the most powerful shinobi. Itachi's sharingan and Shisui's body - flicker technique would pose great challenges for Sakura. However, through her own strength and the knowledge she has gained from Tsunade, she could hold her own. This kind of competition would also strengthen their bonds as they respect each other's abilities more after seeing them in action.
A really interesting plot twist could be that Shisui and Itachi find out that Sakura has a connection to an ancient and powerful clan that they didn't know about before. This connection could bring in new elements to the training, like special techniques or a deeper understanding of the ninja world that they have to incorporate into her training.
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.
A common theme is time - travel. For instance, Sakura might travel back in time and meet a younger Itachi and Shisui. This allows for interesting plot developments as she tries to change the future or just understand their past better. Also, the theme of redemption can be found. Maybe Itachi or Shisui have made some mistakes in their past and Sakura helps them find redemption through their interactions with her.
There are quite a few good writers out there. One way to find them is to search for fanfiction communities dedicated to Naruto (since these characters are from Naruto). In these communities, people often recommend their favorite writers. Some writers are known for their in - depth characterizations of Itachi, Sakura and Shisui. They make the characters feel real and add new dimensions to their relationships. You might also want to follow some fanfiction blogs on Tumblr that often share and promote great fanfictions about these characters.
One possible fanfiction could be about Sakura joining an Anbu team that has Itachi and Shisui. Maybe Sakura is a new recruit and she has to learn from the two experienced shinobi. Itachi could be the calm and collected leader, while Shisui is the more easy - going one who helps Sakura adjust to the harsh Anbu lifestyle.
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.
One unique training method Itachi might use is teaching Naruto through illusions. Itachi is a master of genjutsu. He could create illusions that simulate real - life battle scenarios with various levels of difficulty. This would allow Naruto to practice his combat skills and decision - making in a safe yet challenging environment.
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.