Well, sometimes in fanfiction, Naruto changes his attitude when he discovers a new power within himself. Realizing that this power comes with great responsibility, he could become more solemn and focused. He might start to view his friends and enemies in a different light, perhaps seeing the potential for good in his foes and being more cautious about involving his friends in dangerous situations.
In some fanfictions, Naruto might change his attitude due to a major event. For example, if he fails to protect a dear friend, he could become more serious and less impulsive. This new attitude would be a result of the guilt and the realization of his own limitations.
One common reason is love. If Naruto falls in love in a fanfiction, he may become more gentle and considerate, changing his usually rambunctious attitude. His focus could shift from just being the best ninja to also taking care of the person he loves.
Naruto would probably become more independent. Without his parents' support, he has to rely on himself. He might start to train harder to prove himself to everyone.
In these fanfictions, Naruto's stoicism can make his relationships more complex. His friends might initially be confused as he doesn't show his emotions as openly. For example, Sakura might find it hard to understand this new Naruto at first. But some characters like Kakashi may respect his new - found stoicism. It can also make his enemies more cautious as they can't easily read his emotions.
This fanfiction changes the emotional core of Naruto's journey. His growth in the original was often tied to his connection with his parents' legacy. Here, it becomes about overcoming his hatred for his mother. It also affects his relationships with others. For example, how he interacts with characters like Jiraiya who knew his mother might be very different.
In the original Naruto story, family is an important theme. However, in this fanfiction where Naruto ignores his family, the emotional core of the story shifts. The relationships that were built on family bonds are now broken. This can have a ripple effect on the whole plot. For instance, the support system that Naruto had from his family in the original story is no longer there. So, he has to face challenges alone, which may change the way he approaches battles, makes decisions, and interacts with other characters in the Naruto universe.
Naruto could become bitter. Losing trust, especially in those he once held dear, can make him view the world in a more negative light. He may no longer believe in the good of people so easily and might be more cynical. For example, he might not be as quick to offer help or friendship as he used to be.
In this fanfiction, Naruto's hatred for weaklings might strain his relationships. He may come across as harsh to those he deems weak, causing them to be afraid or resentful. For example, his friends who might be going through a tough time and seem weak temporarily could be pushed away by his attitude.
Naruto would likely become more independent. Without the support of his parents, he has to fend for himself. He might develop a tougher exterior and be more cautious about trusting others. For example, he may not be as open - hearted as he was in the original story, always having the fear of being betrayed again in the back of his mind.
After being promoted to chunin, Naruto's training would change significantly. He'd probably start training with more experienced chunin and jonin. They would teach him advanced combat techniques and how to better analyze his opponents. Also, he might have to study more about the politics and history of the ninja world, as chunin are often involved in diplomatic matters. His physical training would also intensify, but now it would be more about endurance and precision rather than just brute strength.