A great concept for fanfiction is to have hand seals that are not just for combat jutsu. For instance, there could be hand seals for healing, communication, or even for unlocking hidden powers within a character. You could also have a concept where a character has to perform a series of extremely complex hand seals within a very short time limit to access a super - powerful jutsu. This would add a lot of tension and excitement to the story.
One interesting concept could be reversing the normal order of hand seals to create a different effect. For example, instead of starting with the Rat hand seal for a fireball jutsu, starting with the Tiger seal might create a weaker but more spread - out version of the jutsu. Another concept is that some characters might have a natural affinity for certain hand seals based on their personality or birth sign in the fanfiction world.
In fanfiction, you can explore the idea that hand seals are not just physical movements but also mental and spiritual connections. So, a character might be able to perform a jutsu with just the mental image of the hand seals if they have reached a high enough level of spiritual enlightenment. Also, having hand seals that are specific to certain regions or terrains. For example, in a snowy area, there could be a set of hand seals that harness the power of ice and snow in a unique way.
In Naruto memory seals fanfiction, the idea of using memory seals for emotional protection is also cool. A character could have a seal placed on memories of a traumatic event. This can then be explored when the seal starts to break or when another character tries to help the sealed character face those memories. It adds a lot of depth to the character's psychological state.
Some interesting concepts include the use of seals for teleportation. In fanfic, they might create a seal that can transport a person to any location they've previously marked, without the need for complex hand signs like in the original Naruto. There could also be seals that are tied to a character's emotions or memories. For example, a seal that activates when a character feels extreme anger and gives them a boost in power. And then there are the so - called 'forbidden seals' in fanfic which often hold great power but come with a huge cost, like sacrificing a part of one's life force.
One interesting concept could be a story where Naruto discovers he can perform one - handed seals more effectively than two - handed ones. This gives him an edge in battle, allowing for quicker jutsu activation. For example, he might be able to surprise his opponents who are used to the normal two - handed seal - casting time.
One interesting concept could be the exploration of gender in a different way than in the original work. Fanfiction might delve deeper into how the unique gender system affects relationships and society.
Another concept could be the exploration of the planet's environment in new ways. Fanfiction might describe uncharted regions of the planet in the Left Hand of Darkness universe, or how the extreme cold affects not just the physical but also the mental state of the characters. Maybe a story could be about a character's journey through a particularly harsh and unknown part of the planet.
Well, in fanfiction, you could play with the idea of different cultures or clans having their own interpretations of Naruto hand seals. Maybe a long - lost clan has a secret set of hand seals that are related to space - time manipulation. And the main character discovers this in the story. Also, you can make the hand seals more fluid and less rigid as in the original. So, a character could perform them in a more artistic or acrobatic way, adding a new visual element to the fanfiction.
There are many 'Naruto Seals' fanfictions out there. For example, some might explore how different clans in Naruto use unique seals. A fanfic could center around a young ninja who is a prodigy in seal creation, and his journey to master all types of seals. There are also fanfictions that involve Naruto himself learning about a new and dangerous seal that he must keep from falling into the wrong hands.
One interesting plot twist could be that the sealing process goes wrong in a completely unexpected way. Maybe instead of just sealing the Kyuubi's chakra, Naruto accidentally fuses with it on a spiritual level, giving him new and uncontrollable powers at first. Another could be that during the sealing, a dark entity from another dimension tries to interfere and take over the Kyuubi's power within Naruto. It would add a whole new layer of conflict and mystery to the fanfiction. Also, perhaps the seal actually has a hidden purpose that was set by an ancient force long ago, and as Naruto discovers bits of this, it changes his understanding of his role as the Kyuubi's host.
One interesting scenario could be a fight between Naruto and Sasuke where they rely solely on hand to hand combat skills, without using any ninjutsu or genjutsu. It would be a raw display of their physical strength, speed and martial arts training.
Some fanfictions might explore the idea of Naruto befriending an Espada. This friendship could lead to Naruto learning about different ways of combat and power management from the Espada. It could also result in the Espada having a change of heart due to Naruto's positive influence, and together they could face new threats in the Naruto universe that neither could face alone.