One idea could be a fanfiction where the main character discovers an ancient and forgotten seal tattoo. This tattoo gives them unique powers that are related to an old clan in the Naruto universe. They then have to figure out how to control these powers while also hiding the tattoo from those who might want to use it for evil.
The seal tattoo can be a key to unlock a hidden power or a secret location. For example, the protagonist might find a map on their seal tattoo when they reach a certain level of chakra control. This could lead them on an adventure to find a powerful weapon or a lost technique.
It could lead to some really interesting plot twists. Naruto's new ability as a seal master might give him an edge in battles and change the dynamics of his relationships with other characters.
Another aspect in such fanfictions could be the origin of the Kyuubi seal. Some writers might delve into ancient ninja secrets and forgotten jutsu that were used to create the seal in the first place. They might also explore if there were other possible ways to seal the Kyuubi that were considered but not used. This can add a whole new layer of mystery and intrigue to the Naruto universe.
In fanfiction, Naruto might remove the curse seal through intense training. He could focus his chakra in a new way to counteract the dark energy of the curse seal. For example, he might use Sage Mode training to purify his chakra system and gradually force out the curse seal's influence.
In fanfiction, the Naruto mind control seal can be a really interesting plot device. It often adds an element of mystery and danger. Some fanfics might use it to create complex power dynamics between characters, like when an enemy uses it to manipulate a ninja for their own evil plans.
I'm not entirely sure as I haven't read this specific fanfiction. But generally, in Naruto fanfictions, 'the faulty seal' could imply something wrong with the seal on Naruto's body (like the Nine - Tails' seal). It might explore how this faulty seal affects Naruto's life, his powers, or his relationships with other characters in new and different ways compared to the original story.
Neji might gain a significant boost in power. Without the seal suppressing him, his chakra flow could become more natural and stronger. He could potentially unlock new abilities or improve his existing ones, like his Gentle Fist technique becoming even more potent.
In many fanfictions, Naruto might use his unique chakra, perhaps enhanced by his Uzumaki heritage or the Nine - Tails' power. His strong will and connection to his friends could also play a role, allowing him to find a way to break the seal through sheer determination and his belief in Neji's potential.
There's a fanfiction called 'Young Seal Master's Journey'. This story follows a young character who is not Naruto but is inspired by his journey. The author delves deep into the world of seals, exploring their history, different types, and how they can be used in combat and for other purposes. It's a great read for those interested in the more esoteric parts of the Naruto universe like sealing.