In such fanfiction, Sakura might be depicted as more alluring and perhaps more bold in her interactions with Madara. Madara could be shown as having a certain charm that draws Sakura to him.
Maybe an orphan from a non - Uchiha clan who has a special ability that Madara finds interesting. This character would be malleable and eager to learn from Madara, as they have no other real family or guidance. They could bring a fresh perspective to Madara's teachings.
Madara could be experimenting on Naruto to understand the concept of the 'will of fire' that Naruto embodies. Madara has his own views on power and the ninja world, and Naruto's unwavering belief in the will of fire might be something he wants to dissect. He may think that by understanding what makes Naruto so strong in terms of his beliefs, he can either break that strength or use it to manipulate others. Also, Naruto is seen as a symbol of hope in the ninja world, and Madara might want to turn that symbol into something that represents his own ideals through these experiments.
Well, it could be about her journey to discover her father's past. Maybe she stumbles upon some old secrets of Madara and has to decide what to do with that knowledge.
In this fanfiction, Naruto's character development could be seen as a counterpoint to Madara's. Naruto is all about hope, friendship, and protecting the village. Madara has been through a lot of pain and betrayal which led him to a path of destruction. If Naruto is like Madara in this fanfiction, his development might involve a struggle between his own beliefs and the allure of Madara - like power and ruthlessness. However, Naruto would probably still find a way to use any new - found power in a more benevolent way compared to Madara.
Well, in such a fanfiction, it might start with Naruto being in a situation where he becomes Madara's pet. Maybe at first, Naruto is defiant but as time passes, he could start to understand Madara's motives in some strange way. Madara, on the other hand, might initially see Naruto as just a possession but gradually develop a sense of attachment. It could be a really strange and complex relationship that unfolds as the story progresses.
In a Naruto fanfiction where he has Madara's attitude, he could become more power - hungry. Madara was always seeking power to reshape the world according to his ideals. Naruto might start to view the tailed beasts not as friends but as tools for greater power. He could try to gather more chakra and perhaps even attempt to unlock new forms of power that are more in line with Madara's dark and ambitious nature, which would shock his comrades and enemies alike.
One key event could be Naruto's lonely childhood. Growing up without parents, constantly being shunned by the villagers. Madara might see how Naruto coped with that, like when he sat alone on the swing. Another could be his encounter with Iruka, who was the first to really recognize Naruto as a person, not just the container of the Nine - Tails. This moment might be significant as it was a turning point in Naruto's self - acceptance.
Well, it depends on how the fanfiction is written. He might have some of Madara's basic powers like the Sharingan, but perhaps in a more evolved form. For example, Madara's Sharingan had different levels of power, and his great - grandson could have a Sharingan with new abilities that are unique to him.
Perhaps he sees her as a threat. Sakura is a skilled kunoichi, and Madara may want to prevent her from interfering in his plans. So he restrains her to keep her out of the way.