They would likely have a complex relationship. At first, they might be wary of Madara as he has been their enemy in the past. But as they train under him, they would start to respect his skills and knowledge. Naruto might try to understand Madara's motives and see if there's any good in him. Sasuke, having an Uchiha connection, might feel a stronger sense of kinship but still be cautious. Madara, for his part, would probably see them as tools at first but gradually develop a strange sort of respect for their growth.
For Naruto, being trained by Madara could mean he learns how to counter Uchiha - specific techniques more effectively. His physical strength might also increase due to the intense training. Sasuke would be able to better harness his hatred and turn it into a more focused power source. Madara's teachings could expose them to ancient jutsu and knowledge that would give them an edge over their enemies. Their teamwork might also be affected, as they would both be influenced by Madara's way of thinking.
In this kind of fanfiction scenario, Naruto would likely become extremely powerful. Madara is an incredibly skilled and powerful ninja. He could teach Naruto some very advanced jutsu and combat strategies. Naruto might also gain a different perspective on the ninja world and its power dynamics.
Well, one possibility could be that Naruto gains unique and powerful jutsu from Madara. Maybe he learns some ancient Uchiha techniques that give him an edge in battles against tough opponents like the Akatsuki. For example, he could master a more advanced form of fire - style jutsu that Madara had developed long ago.
In such a fanfiction, Naruto might gain unique and powerful abilities. Female Madara could teach him some Uchiha - related jutsu that are different from what he has learned before. His combat style could become more unpredictable, combining Uzumaki's chakra strength with Uchiha's techniques.
In a fanfiction where Naruto is trained by Hashirama and Madara, he would likely become an extremely powerful ninja very quickly. Hashirama's wood - style jutsu and his ability to control tailed beasts could be passed on, and Madara's combat skills and Sharingan - related techniques might also be taught. Naruto could combine his own Uzumaki chakra reserves with these new skills and become nearly unbeatable.
In a fanfic where Naruto is trained by Madara, Naruto might gain some extremely powerful and unique jutsu. Madara is a very skilled and experienced shinobi. He could teach Naruto some ancient and forbidden techniques that are not known in the regular Naruto world. This could make Naruto an even more formidable opponent, perhaps with a new style of combat that combines his own natural abilities with Madara's dark and powerful knowledge.
It could completely change Naruto's character and abilities. Madara's teachings might lead Naruto down a darker path or give him incredibly powerful skills.
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.
Naruto would likely become more serious. Madara's influence would probably make him less impulsive. For instance, he would think twice before charging into battle without a proper plan.
They could go on adventures to discover ancient ninja secrets. Since they are the same age, they might team up to explore hidden places that are said to hold great power or knowledge. Maybe they would search for lost jutsu together and face various challenges along the way.