There could be Sakura's friends or comrades who might be affected by her decision to abandon the village. For example, Naruto or Sasuke could be characters involved. They might try to understand her reasons or even try to persuade her to come back.
It's possible that her family members play significant roles. If she has a family in the village, their reactions to her leaving would be important. They could be either supportive or against her decision. And also, there could be a mentor - like figure in the village who she was close to, and her departure from the village could be a big shock to this person, making this mentor a key character in the story.
Perhaps there are some original characters created by the fanfiction author. Maybe a mysterious figure who has some connection to Sakura's past and is the reason she abandons the village. Or it could be a group of villagers who are not so friendly towards Sakura and their actions push her to leave, and these villagers could be important characters in the story as well.
In this 'sakura abandons the village fanfiction', it might be that Sakura abandons the village due to a rift in relationships. Maybe she had a falling - out with the village leaders or some of her peers. It could also be related to a discovery she made about the village's secrets that made her feel she no longer belonged there. For example, if she found out the village was involved in unethical practices that she couldn't tolerate.
Since the title mentions 'sakura prodigy', Sakura is likely to be the main character. But without reading the fanfiction, it's hard to say if there are other important characters. There could be antagonists who oppose Sakura's journey, or perhaps she meets some companions along the way who also don't belong to a village.
She could also try to find Sasuke and clear up any misunderstandings. Sakura is not one to give up easily, especially when it comes to someone she loves. She might set out on a journey to find him, believing that she can bring him back and make him realize the importance of their family.
Maybe she has some unresolved issues from her past, like her unrequited love for Sasuke that still lingers in the back of her mind. This could make her question her relationship with Naruto and lead to her leaving.
One possible reason could be that Sakura realizes she has different goals or values that are not compatible with being around Naruto. Maybe she discovers a new path in life that doesn't involve him, such as focusing on her own medical ninja career without Naruto's chaotic lifestyle interfering.
The Akatsuki members would be the main ones. It could include Itachi, who is known for his complex character and powerful abilities. His relationship with Sakura could be an interesting aspect, whether it's one of mutual respect or a more adversarial one.
Sakura's friends like Naruto and Sasuke could be main characters. They might be the ones trying to find a way to save her. They could be using their skills and powers to look for a cure or a solution.
He could become very determined to find out why Sakura left and try to win her back. Naruto is known for his perseverance, and he wouldn't give up easily on his family. He might also start to question his own actions and wonder if he could have done something differently to prevent this.
One of the main characters could be Sakura's mother. Mothers are often intuitive about their children's problems. She could be the one who eventually helps Sakura open up about her self - harm. Then, there might be a new acquaintance in Sakura's life, someone she meets randomly. This person could have had a similar experience in the past and be able to offer unique advice and support to Sakura.
Tomoyo would also be an important character. She would be very worried about Sakura. She might use her skills in making costumes to create some special baby clothes for Sakura. And she would be constantly by Sakura's side, taking care of her and trying to comfort her.