Well, in this kind of fanfiction, it might be that Sakura loses Naruto because of a misunderstanding. Maybe some false rumors spread about her, and Naruto distances himself from her. Then Sakura has to find a way to clear her name and win back Naruto's trust. Or perhaps Naruto is influenced by some dark force that makes him turn away from Sakura, and she has to fight against this force to get him back.
In a 'sakura loses naruto fanfiction', a possible plot is that Naruto decides to leave the village for some important mission or self - discovery journey without Sakura. Sakura feels left behind and lost. She then has to reevaluate her own life and purpose. She might try to follow Naruto but face many obstacles on the way. This could lead to her growth as a character, learning to be more independent while still longing for Naruto's return.
One possible plot could be Naruto losing his arm during a battle with a powerful new enemy. He then has to struggle with not only the physical loss but also the emotional and mental toll it takes on him as a ninja. He might have to learn new fighting techniques that don't rely on two arms.
Often, in Sakura - loses - her - memory fanfiction, she might mistake her enemies for friends or vice versa due to the memory loss. This can lead to some really interesting situations. For example, if there was an antagonist who was pretending to be a friend, she might unknowingly help them in their evil plans at first. Then, as the story progresses, she slowly starts to piece things together.
Another plot could involve Sakura being forced to betray Naruto. Let's say an enemy captures someone she loves dearly, like her parents or Sasuke, and forces her to give information about Naruto in exchange for their safety. This would create a very complex and tragic situation for her.
Well, one possible plot could be that Harry's love is taken away due to some dark magic. Maybe an enemy casts a spell that makes his love forget about him. Another could be that Harry has to sacrifice his love for the greater good, like to save the wizarding world. And also, it might be that there's a misunderstanding between them that causes the loss of love.
Well, in some 'naruto loses arm fanfiction', it might be a result of a forbidden jutsu gone wrong. Naruto might be exploring a new and dangerous form of power, and the price is his arm. This would then set off a chain of events where he has to find a way to either get his arm back or adapt. He could also face discrimination from some in the ninja community who see him as weakened, but he'd prove them wrong by his unwavering spirit.
It could be Sasuke. If Sasuke has some sort of newfound connection with Naruto and it causes Naruto to shift his focus away from Sakura, then Sasuke would be the cause. For example, if Sasuke and Naruto team up for a powerful mission and their bond deepens in a way that makes Naruto neglect his relationship with Sakura.
One interesting plot could be Naruto forgetting all his ninja skills. So he has to start from scratch, relearning basic jutsus. This would make for a great character development arc as he discovers his old abilities in new ways.
One possible plot could be that they accidentally end up in a situation where Sakura becomes pregnant, and then they have to deal with the reactions of their friends and the ninja community. Another could be that it's part of a planned future for them, and the fanfiction focuses on their preparations for the baby.
Well, one possible plot could be that Sakura makes a mistake during a mission that endangers the whole team, and Itachi, as a strict figure, decides to punish her by making her go through intense training regimes. This would be to teach her the importance of discipline and caution in their dangerous ninja world.
One possible plot is that Naruto and Sakura get sent on a long - term mission together, away from the village. During this time, they rely on each other completely and this deepens their bond. They start to share their dreams and fears, and that's when their love begins to bloom.