One possible plot could be that Itachi, in a different turn of events, survives his illness and becomes intrigued by Sakura's growth as a ninja. His obsession could start from admiration of her medical skills and then develop into something more personal. This could cause a stir in the Naruto universe as it's an unexpected relationship. It might also lead to some conflict, especially with Sasuke, as Itachi's actions towards Sakura could be misconstrued.
In a 'itachi obsessed with sakura fanfic', the plot might revolve around Itachi seeing Sakura as a symbol of hope or something that he has lost in his own life. He could be drawn to her determination and kindness. Itachi might start leaving cryptic messages or gifts for Sakura, which would puzzle her at first. As the story progresses, Sakura could find herself in a difficult situation where she has to decide whether to trust Itachi or not, especially considering his past actions and the secrets he still holds. This could create a complex web of relationships and power dynamics within the fanfic.
Maybe Itachi, despite his stoic nature, starts to have an unexpected soft spot for Sakura. He could be secretly protecting her during her missions, which might lead to some tense and mysterious moments as Sakura tries to figure out who her mysterious protector is.
It could be that Itachi is being controlled by some dark force or an enemy. He doesn't really want to harm Sakura but has no choice. The fanfic might then focus on Sakura trying to figure out how to break the control on Itachi while also trying to escape from the situation. She could use her medical ninjutsu skills to her advantage in some way.
One possible plot could be that Itachi, with his mysterious and alluring charm, starts by casually interacting with Sakura in the Hidden Leaf Village. He might save her from a small danger, which makes Sakura curious about him. Then he begins to share his deep thoughts about the ninja world with her, gradually drawing her in with his intelligence and different perspective.
Perhaps in this fanfiction, Itachi has a certain 'weight' of expectations or a mission that somehow involves Sakura. She might be struggling to deal with his decisions or the way he's affecting the situation around her. For example, if Itachi is on a path that goes against Sakura's beliefs, she could be fighting internally on how to react or whether to try and change his course. Another possibility is that Itachi has some form of power or ability that is creating a difficult environment for Sakura to operate in, and she is struggling to adapt or overcome it.
Well, one possibility could be that Itachi sees potential in Sakura's skills and decides to train her in the ways of the ANBU. He might start with teaching her stealth techniques, like how to move silently and blend into the shadows. This could involve a lot of practical exercises in different terrains.
In such a fanfic, perhaps Itachi kidnaps Sakura for some strategic reason related to the shinobi world. Maybe he thinks Sakura has some knowledge or ability that could be useful to his goals. For example, her medical skills could be crucial for treating someone in his group.
One possible plot could be a story where Sakura, Itachi, and Shisui are all part of the ANBU. Itachi and Shisui could be mentoring Sakura in the ways of the ANBU. They might go on a dangerous mission together, facing powerful enemies. Shisui could use his unique abilities like Kotoamatsukami to gain an advantage, while Itachi's Sharingan and combat skills are also crucial. Sakura, with her medical ninjutsu and growing combat skills, could prove to be a valuable asset in the team.
Well, one possibility could be that they are on a mission together. Sakura's medical skills could come in handy when Itachi or Shisui get injured. And they might face a powerful enemy that requires all of their skills combined to defeat. Maybe Itachi's Sharingan and Shisui's unique abilities, along with Sakura's strength and intelligence, make for an interesting dynamic.
Well, in a fanfic like this, the plot could revolve around Sasori's obsession leading to him creating puppets in Sakura's likeness. He might be so fixated on her that he tries to replicate her in his own art form. Or perhaps he tries to manipulate situations in the ninja world to get Sakura to come to him willingly. He could send out false threats or create chaos just to draw her attention. And as Sakura becomes aware of his obsession, she has to figure out how to deal with it, whether it's through fighting or trying to understand the root of his feelings.
One common theme is unrequited love. Itachi may be pining for Sakura while she is oblivious or has feelings for someone else. Another theme could be sacrifice, where Itachi's feelings for Sakura lead him to make sacrifices he wouldn't otherwise make.
Well, I haven't really come across a particular 'itachi obsessed with sakura fanfic' myself. However, you can ask in relevant anime or Naruto fan communities. There are often people who are really into fanfics and might be able to point you in the right direction. They could share their own favorites or give you some tips on how to find such a specific type of fanfic.