Sakura is the central figure here. However, depending on the direction of the fanfiction, there could be new characters introduced. Maybe an old sage or a mysterious healer who claims to know about the curse mark. But the mainstay characters from the Naruto universe such as Kakashi Sensei could also be involved, guiding Sakura through this difficult time and helping her understand what the curse mark means and how to handle it.
There could be Naruto. Since he's Sakura's friend, he would likely be involved, trying to help her deal with the curse mark. He might use his own powers and experiences to support her.
I'm not sure specifically as there could be many different takes on it. But generally, it might involve Sakura getting a curse mark which could lead to her facing new challenges, perhaps having to deal with dark powers within her, and it could change her relationships with other characters as they might view her differently or she might have to struggle to control this new aspect of herself.
The 'sakura gets the curse mark fanfic' might focus on how Sakura's relationships change. Her friends could be worried about her. She may have to seek out ways to remove the curse mark, which could lead her on an adventure to find a cure. Along the way, she might discover secrets about the origin of the curse mark and its connection to some greater power in her world.
It could be Orochimaru. He is known for his experiments with curse marks, and he might see Hinata as an interesting subject to study or use for his own evil plans.
Naruto is the central figure for sure. But in many fanfictions, characters like Jiraiya could be involved. Jiraiya, being Naruto's mentor in some ways, would want to study the curse mark and find a way to either remove it or help Naruto use it safely. Another character could be Orochimaru. Since he is associated with the curse mark in the original series, he might make an appearance, either as an antagonist trying to manipulate Naruto through the curse mark or as a source of information about it.
Well, it could be about Hinata struggling with the new power and the negative effects of the curse mark. Maybe she has to learn to control it to avoid being consumed by its dark side.
Obviously, Sakura and Sasuke are the main characters. Sakura is the one struggling, and Sasuke is the one whose grip is part of the situation, likely due to a curse.
Sasuke is often a popular choice. His original curse mark in the Naruto series gives a lot of room for exploration in fanfiction. Writers can delve deeper into how it affects his personality and his path towards power. Another popular character is Naruto himself. Imagine if Naruto were to somehow get a curse mark and how he would deal with it, different from Sasuke's way.
A sakura curse mark fanfiction might center around a group of characters who all have different types of curse marks, but the sakura one is unique. It could be that the sakura curse mark is the key to unlocking a hidden power within the group. For instance, when all their curse marks combine in a certain way during a dangerous situation, the sakura curse mark activates a shield that protects them all. Some fanfictions may also explore how the appearance of the sakura curse mark changes as the character grows stronger or more in tune with their powers, like it starts off as a small pink mark and then spreads into a beautiful sakura - like pattern across their body.
The curse mark in the fanfiction could be a catalyst for fem Naruto's growth. It could bring out hidden aspects of her personality. Maybe it gives her access to new powers that she has to learn to control. This process of learning and the physical and mental changes caused by the mark would surely have a profound impact on her character development. She might become more cautious, as she realizes the potential danger of the mark, yet also more bold in her attempts to master it.