Well, it depends on how the fanfiction is written. Naruto has a vast amount of chakra and his Uzumaki bloodline gives him an edge in terms of stamina. Madara, on the other hand, has years of combat experience and his ocular powers are extremely dangerous. However, in fanfiction, the author can manipulate the power levels. If the writer wants to show Naruto as strong as Madara, they could have Naruto master some ancient and powerful jutsu that cancels out Madara's advantages, making their strength equal in the fictional narrative.
Well, it could be through his powerful ninja techniques. Maybe he uses his Sharingan to paralyze Sakura, or perhaps he physically restrains her with his great strength. In fanfictions, there are many creative ways for such a scenario to play out.
Madara could also save Naruto by using his knowledge of the ninja world. Maybe he has some inside information about a plot against Naruto and he intervenes in time to stop it. He might have discovered a secret plan by an enemy group and takes action to keep Naruto out of harm's way. This could involve manipulating events behind the scenes or directly confronting the threat.
Well, in some versions of fanfiction, Naruto might have unlocked a new and super - powerful form of his Sage Mode. This enhanced form could give him the strength and speed necessary to outmaneuver and overpower Madara. Maybe he also gets some unexpected help from allies, like a new jutsu from Kakashi that weakens Madara's defenses just long enough for Naruto to land the final blow.
Well, in some versions, Naruto might use his new and super - powered Sage Mode. He could combine his chakra with the natural energy in a way that gives him an overwhelming boost in strength and speed. This enhanced state could allow him to outmaneuver Madara's attacks and land some really powerful blows that gradually wear Madara down.
In some Naruto fanfictions, Madara might be sealed through a powerful jutsu created by the main character. For example, the protagonist could combine different elemental chakra natures to form a unique sealing technique specifically designed to counter Madara's power.
At first, it might be very rocky. Naruto would be suspicious of Madara given his reputation. But as time goes on, if Madara shows genuine care and teaches Naruto useful skills, Naruto could start to respect him. Eventually, they could develop a father - son - like bond.
It would be a moment full of anticipation. Sarada, with her hand on her kunai, ready for any threat. Madara, standing tall and imposing. The air around them would seem to crackle with chakra. Sarada's Sharingan would be activated, trying to predict Madara's moves. Madara, on the other hand, would be smirking, amused by the young Uchiha's bravado. Their first words to each other could set the tone for the entire encounter, whether it be one of hostility or a begrudging respect.
Some fanfictions might depict Naruto as having a deeper understanding of the chakra system than ever before. He could have found a way to disrupt Madara's connection to the chakra source, or maybe he was able to use his own chakra in a way that nullified Madara's powerful jutsus. Also, Naruto's experience from all his previous battles might have led him to anticipate Madara's moves and strategies, allowing him to stay one step ahead and ultimately defeat him.
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.