Their relationship could start with mutual respect. Shisui might respect Sakura's determination and her growth as a ninja. Sakura, on the other hand, would be in awe of Shisui's Sharingan abilities. As they go on missions together, they start to trust each other more and more.
It could develop through shared experiences. For example, if they are both involved in a difficult rescue mission. Shisui uses his speed and stealth, and Sakura uses her medical skills to save the hostages. After that, they become closer friends. They might start sharing their past traumas, like Shisui's experiences with the Uchiha clan and Sakura's insecurities about her strength in the beginning. This deepens their bond.
First, create shared experiences. For example, put them in a dangerous mission together. Second, give them common interests like a love for a certain type of jutsu or a passion for helping the village. Third, show how they support each other through difficult times, like when the OC is having trouble with her training and Shisui helps her out.
Itachi is a very complex and reserved character, while Sakura is strong - willed. Their relationship could start with Itachi being somewhat of a mentor to Sakura in terms of combat strategy. Sakura would be intrigued by Itachi's calm and calculating nature. As they spend more time together, Sakura might start to see the softer side of Itachi that he hides from most, and this could lead to a deeper connection.
Unlike some canon pairings where there are often a lot of angsty, one - sided pursuits, Shisui and Sakura's relationship could start from a place of respect. Shisui, being an older and more experienced ninja, would see Sakura's potential. Sakura, in turn, would be drawn to Shisui's wisdom and unique abilities. Their relationship might develop into a partnership where they support each other in both combat and in understanding the complex politics of the village.
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 character would likely become more confident. Being an Uchiha gives her access to powerful abilities and a certain status within the Naruto world. This new - found power could boost her self - esteem which was sometimes lacking in her original self. She would also become more in - tune with the darker aspects of the Naruto universe as the Uchiha have a tragic history.
A story where Shisui survives and he meets Sakura during a mission outside of Konoha. Sakura is initially wary of him because of his Uchiha heritage, but Shisui's gentle nature quickly wins her over. They then team up to complete the mission and in the process, discover they have a lot in common. They start to exchange medical and combat knowledge, which deepens their bond.
One idea could be a time - travel fanfic where Sakura goes back in time and meets a young Shisui Uchiha. She could be on a mission to change certain events in the Uchiha clan's history and ends up forming an unexpected bond with Shisui. They might work together to prevent some of the tragedies that befell the Uchiha.
At first, their relationship could be one of teacher - student in a way. Madara, with his vast knowledge of jutsu and the ninja world, could teach Sakura some ancient Uchiha techniques. Sakura, with her thirst for knowledge, would be eager to learn. Through this exchange, they would get to know each other better. As Sakura starts to master these techniques and use them in her own way, Madara might be impressed by her creativity. This could lead to a relationship that evolves from a simple teacher - student dynamic to a more equal partnership, and perhaps even something more romantic over time as they share more personal stories and experiences.
After getting married, their relationship might develop with more trust. Sasuke, who has always been a bit of a loner, would start to open up more to Sakura. He would share his thoughts and feelings with her, which would make their bond stronger.