Often, there are also antagonist characters. For instance, a dark sorcerer who wants to use the power of the sakura reincarnation for his own evil purposes. This creates conflict in the story as the protagonists must protect the sakura spirit from being exploited.
Naruto can also be paired with Sakura in these fanfictions. Since they are such close friends in the original, in a reincarnation scenario, their friendship could potentially turn into something more romantic. They could support each other in different ways than in their past lives.
The dragon itself is, of course, a common character. Whether it's in its original form at the start or in its reincarnated state.
Sasuke is also frequently present. His complex relationship with Sakura can be further explored in the fanfiction. The reincarnated character could either get involved in their relationship or try to change the dynamics between them.
In many fanfictions, the idea of Sakura being the reincarnation of Madara is used as a plot device. This can lead to some really interesting story developments. For example, it might change how Sakura interacts with other characters like Naruto and Sasuke. Her new 'reincarnation' status could give her access to Madara's powers or knowledge in some way. It also allows the author to play with themes of destiny, power, and self - discovery in a different way compared to the original Naruto story.
It's hard to say exactly who the main characters would be without reading the specific fanfic. But it could be a young woman who has memories of her past lives related to sakura. Maybe she's the one who is on a quest to figure out the significance of these memories.
In the 'sakura reincarnation of kaguya fanfiction', it may tell a story that combines the characteristics of Sakura and Kaguya. It could start with some mysterious event that reveals Sakura's connection to Kaguya. Then, it might follow Sakura as she discovers more about her past life as Kaguya. There could be a lot of emotional turmoil as she tries to come to terms with this new identity. Also, it might include some epic battles or challenges that she has to face because of her reincarnation, perhaps using powers that are a blend of what Sakura originally had and what Kaguya possessed in the original tales.
Well, it could be about Sakura somehow being related to Obito in a reincarnation context. Maybe it involves Sakura having memories or powers that are linked to Obito from a past life. It might explore how this new connection changes their relationship in the Naruto universe, like if Sakura starts to understand Obito's past actions better or if she gains new abilities because of this reincarnation bond.
There could be implications for the overall plot of the fanfiction. It could lead to a different kind of conflict, perhaps with other characters who have a vendetta against Madara or the Uchiha clan. Sakura's new identity as the reincarnation of Madara could also attract the attention of powerful and dangerous entities, forcing her to face new challenges and make difficult choices that she wouldn't have had to in the original Naruto story.
Some fanfictions may include animal characters that are associated with the sakura. For example, a magical fox that guards the sakura grove or a bird that can communicate with those who possess the sakura power. These characters add an element of magic and mystery to the story.
Many fanfictions pair Ash, in his reincarnated state, with new characters as well. Sometimes there are powerful Pokémon trainers or even mysterious characters from different dimensions. These new pairings can introduce fresh storylines and dynamics, like the new character guiding Ash through his new, reincarnated journey or being in conflict with him over different goals.