There could also be an antagonist, perhaps the abuser. This character would play a crucial role in driving the conflict in the story. They could be a complex character with their own motives, though their actions are clearly wrong.
In addition, there might be other characters like friends or family members who either contribute to the abuse unknowingly or play a part in the sister's recovery. For example, a grandmother who has a soft spot for the sister and provides a safe haven from time to time.
Well, obviously Sakura's sister would be a main character. And Sakura herself often plays a significant role as well. Sometimes other characters from the original series like Naruto or Sasuke might make appearances, especially if the story is set in the same universe and their actions impact the sisters in some way.
Obviously, Sakura is one of the main characters. She is a strong and determined kunoichi. And then there's Sasori's sister. We don't know much about her yet, but she's likely to be a complex character, perhaps influenced by Sasori's actions and reputation in the ninja world.
One possible plotline could be the sister's journey to overcome the abuse. Maybe she finds a support system, like a new friend or a kind neighbor, who helps her gain the strength to stand up against the abuser.
Obviously, Sakura's sister would be a main character. Sakura herself might also be in it, as well as their friends. There could be a cute animal sidekick too, like a talking cat or a little fairy.
The main characters are obviously Sakura's parents. We might not know their names yet, but they are the central focus. Maybe her father is a strong - willed man with a sense of justice, and her mother is a gentle and intelligent woman.
There is no such official story in Naruto. The main focus in Naruto is on Naruto's growth, his friendships, and the overall plot related to the ninja world, not such an uncharacteristic and potentially inappropriate relationship.
Sakura and Pein are the central characters for sure. Sakura, who has to come to terms with her newfound family connection. Pein, who may have some hidden motives regarding his daughter. Additionally, characters from the Akatsuki organization that Pein is associated with could also play significant roles in the fanfiction.
The obvious main character could be the one who ends up in Sakura's body. It could be an original character created by the fanfiction writer.
Obviously, Sakura and Ino are the main characters. Sakura is the owner of Ino, who is her pet.
Without reading the 'sakura's futa lemon fanfiction', it's impossible to accurately name the main characters. However, given that Sakura is in the title, she is likely a central figure. The 'futa' part might introduce another main character or a group of characters with a particular trait. And if there are any romantic or relationship - based elements (as the 'lemon' might suggest), there could be other characters involved in those relationships with Sakura. But again, this is all just speculation.