It could derail the plot completely. For instance, if the Seal Master was supposed to teach Naruto a crucial sealing technique to stop an upcoming evil, his ignorance means that evil might succeed. So the whole story takes a darker turn as the heroes are now at a disadvantage.
The plot might shift towards Naruto's character development in a different way. Instead of relying on the Seal Master's guidance, he has to learn from his own mistakes. This could make him more independent and self - reliant. However, it also means he has to face more challenges alone. His relationships with other characters might also change as they react to his decision to ignore the Seal Master. Some might distance themselves, while others might be more drawn to his new - found determination.
It can create a lot of tension. The team dynamic is a big part of the Naruto story, so when Naruto ignores them, it throws everything off balance. The other members of Team 7, like Sasuke and Sakura, will have to react to this. They might try to find out what's wrong with Naruto or they could also become angry with him.
She could change the power balance. If she's a powerful seal master, she might be able to create seals that can counter powerful jutsus of the villains. For instance, if there's a new villain with a really strong attack jutsu, she could develop a seal to nullify it.
It'll likely change the power balance. If Naruto breaks the seal early in the fanfiction, the story could take a completely different turn. Enemies that were once a threat might become easy to defeat, or new, more powerful enemies could emerge because of the change in Naruto's power level.
It can drive the plot by introducing new challenges. If the divine language is difficult to understand, characters may have to search for ancient texts or seek out mentors to decipher it. This search could lead them to new locations and encounters.
In terms of his romantic relationships, if a love interest discovers the seal on his heart, it could either draw them closer or create distance. If they are understanding and want to help, it could strengthen their bond. But if they are afraid of the unknown associated with the seal, they might pull away. For example, Hinata might be initially scared but then resolve to stand by Naruto and help him understand the seal.
Well, it doesn't really have a direct impact on the creation of fanfiction. Fans will continue to write fanfiction regardless because they love the world and characters. However, it might make some fans feel a bit more removed from the official source. They might create fanfiction with a sense of it being a completely separate entity from the 'true' Harry Potter world as defined by J.K. Rowling.
The seal master's strict and traditional nature contrasts with Naruto's carefree and impulsive style. For example, when the seal master is explaining the precise and ancient art of sealing, Naruto might make a silly comment or mistake, and the seal master's exasperated reactions are quite humorous.
It might make some Gryffindor fans in the fanfiction world feel disappointed. They may have hoped for his approval or participation in some way.
Naruto's life would be very different. He would be more respected in the ninja world for his unique skills. Instead of just being known for his Nine - Tails chakra, his sealing abilities would also be a major factor. He could use his sealing skills to protect the village in new ways, like creating powerful seals around Konoha to prevent enemy attacks. Also, he might be called upon more often to deal with dangerous artifacts or threats that require sealing.
On the other hand, it could also be a turning point. Sasuke might start to realize how important Sakura is to him when she ignores him. He may then take steps to make amends and understand her better. So, in a way, it can be a catalyst for a deeper and more honest relationship if they can get past this phase.