If Naruto is the son of Kyuubi in the fanfiction, his character development would be drastically different. He would have a different kind of self - discovery journey. His relationship with the villagers could be more hostile from the start. They might not just see him as the container of the Kyuubi but as the actual offspring of the beast they fear. This would force him to grow up faster, in a sense. He would have to prove himself not just as a ninja but as someone worthy of acceptance despite his 'parentage'. His training might also focus more on controlling his in - born Kyuubi - like traits rather than just taming the Kyuubi's power within him.
Naruto's character development would be drastically different. He might be more in tune with his 'fox - like' nature from the start. Instead of fearing the Kyuubi's power, he could embrace it as part of his identity.
Well, if Naruto was Tsunade's son in the fanfiction, his character might become more confident earlier. Tsunade is a strong and respected figure in the Naruto world. Having her as a mother could mean Naruto has more direct access to powerful jutsu training and political influence. He might not be as much of an underdog as in the original story, which could make his journey to becoming Hokage a bit different. He could also inherit some of Tsunade's gambling habits, which would add an interesting twist to his character.
Kyuubi's comfort can make Naruto more confident. Knowing that he has Kyuubi's support, he may take on more difficult missions without hesitation. For instance, if he's facing a powerful enemy, he'll remember Kyuubi's words of encouragement and stand his ground firmly.
In this fanfiction, their relationship becomes more of a partnership. Instead of Naruto just using the Kyuubi's power, they work together as brothers. Naruto might start to understand the Kyuubi's feelings and motives better.
In fanfiction, the 'godlike naruto kyuubi bloodline' often makes Naruto more confident. Since he has such powerful abilities, he doesn't have to doubt himself as much. For example, he might be more assertive in battles and in his interactions with others.
His relationships with others would also change. For instance, his bond with Sasuke might not be as intense in terms of power rivalry. Since he doesn't have the Kyuubi, Sasuke may not see him as a threat in the same way. Naruto would probably have to work harder to prove himself worthy to his friends and the village. He'd be more of an underdog in a different sense, relying solely on his own efforts and natural talents rather than the Kyuubi's power, which would lead to a more humble and determined Naruto.
The fanfiction may portray Naruto's character development as a struggle between light and dark. The Kyuubi memories represent the dark side that constantly pulls at him. At first, Naruto may be confused and even frightened by these new memories. But as the story progresses, he could start to understand them better and use them to his advantage. This could lead to a more mature Naruto, one who has faced his inner demons and emerged stronger. He might become more empathetic towards others who also have inner struggles, having gone through such a profound change himself.
Naruto may become more confident. Since being the Kyuubi's kit gives him special powers and a new status, he no longer has to prove himself as much. He could also become more solitary as he has to deal with his new identity which others might not understand.
It could make Naruto more curious about the Kyuubi from an early age. Since his mom was a fan, he might have grown up hearing stories about the Kyuubi that were different from the common view. This could lead him to be more open - minded when it comes to dealing with the Kyuubi's power within him.
It makes him more complex. Instead of just having his Uzumaki heritage, he now has to deal with the traits and expectations of the Senju and Uchiha. He might become more introspective as he tries to understand the differences and similarities between the three lineages.