If Naruto is the son of Kyuubi and Kushina, his training might involve learning how to tap into the unique powers of both his parents. He could learn special sealing techniques from Kushina's side, as she was an expert in that. And from Kyuubi, he might learn how to use the raw power of the Nine - Tails in a more controlled and strategic way. His sensei might also have to come up with new training methods to handle his special abilities.
His training would likely be more intense. Since he has the blood of Kyuubi, he might have a natural affinity for chakra control and large amounts of chakra. So, his training could focus on refining and mastering this huge chakra reserve from an early age. For example, he could be taught advanced chakra - based jutsu much earlier than in the original story.
His training would likely be more intense. Since Kyuubi is a very powerful being, she would push Naruto to his limits. For instance, she might teach him more advanced chakra control techniques earlier than in the original story.
His character development would likely be much darker. He would lack the initial source of love and support that Kushina was supposed to provide. This could make him more distrustful of others. For example, he might not be as quick to form bonds with his teammates in the same way he did in the original story.
One possible plot could be that Naruto grows up with a unique connection to the fem Kyuubi. Since his mother Kushina was also linked to the Kyuubi, Naruto might have an even stronger bond. He could learn special jutsus from the fem Kyuubi's chakra, which makes him stand out among his peers in the ninja academy. His relationship with the fem Kyuubi could be like a mentorship, guiding him on his path to become a great ninja.
His development could be quite different. Since he has this special connection to the fem Kyuubi and is Kushina's son, he might grow up with a more refined sense of chakra control. This would make his training easier and he could progress faster in his ninja skills. Also, his attitude towards his enemies might be more understanding, as the fem Kyuubi could have taught him about the reasons behind people's actions. He could become a more diplomatic ninja, trying to find peaceful solutions first instead of just jumping into battle.
Since Tsunade is known for her medical skills, Naruto could be trained in advanced medical ninjutsu much earlier. This would not only make him a more versatile shinobi but also give him an edge in battles as he could heal himself and his comrades quickly. Jiraiya, on the other hand, would introduce Naruto to more complex and dangerous combat scenarios. His training might involve long - distance missions and battles against powerful opponents to toughen him up. Also, the combination of Tsunade's strict discipline and Jiraiya's more laid - back but still effective teaching style would create a unique learning environment for Naruto.
In Uzushiogakure, there could be a greater emphasis on stealth and guerrilla - like tactics. Naruto's training would then include learning how to move quietly, set traps, and ambush enemies effectively. This would make him a more well - rounded ninja, as these skills would complement his existing strength and determination. Additionally, he might train with different weapons that are more common in Uzushiogakure, such as specialized water - resistant blades.
His training would likely be more intense and diverse. He might have access to the Sannin's personal training regimens. For example, if he was related to Orochimaru, he could be exposed to more experimental and dangerous forms of training. If related to Tsunade, there would be a stronger focus on chakra control and physical strength training.
He'd be more confident. Growing up with Fugaku and Kushina, he'd have a strong family support system. He wouldn't have the same insecurities as in the original story. He might also be more of a natural leader, inheriting Fugaku's leadership skills from the Uchiha clan and Kushina's strong spirit.
Naruto would become more confident in his abilities. With Kushina's training, he would have a better understanding of his Uzumaki heritage and the power that comes with it. This new - found confidence would show in his battles and his interactions with others.
His training would likely be on a much grander scale. Instead of training with Jiraiya in normal ninja techniques, he could be training with beings from different universes who are aware of his Omni King lineage. They might teach him cosmic - level jutsu that are far beyond what is known in the Naruto world.