One idea could be exploring how the five pronged seal affects Naruto's chakra in unique ways that were not shown in the original series. Maybe it gives him new abilities or limitations that he has to overcome.
A plot could revolve around someone trying to break the five pronged seal on Naruto in a way that is different from Jiraiya's attempts. This could lead to a whole new adventure and encounters with different characters. For example, they might need to seek out a long - lost shinobi who has knowledge about this specific seal. It could also involve Naruto having to deal with the consequences of the seal being tampered with, such as unexpected surges of chakra or changes in his personality.
One possible plot could be centered around a young ninja who discovers an ancient scroll related to the five - pronged seal. This ninja, perhaps an outcast in their village, starts to study the seal in secret. As they delve deeper, they find that the seal has a connection to a long - forgotten power that could either save or destroy the ninja world. They must then decide whether to share this discovery or keep it hidden while facing the moral dilemma and the threat of those who would misuse the power if they knew about it.
Danzo could be a great antagonist in this fanfic. He was always power - hungry and had his own secretive ways. He might see the five pronged seal as a way to control Naruto or to use his power for his own dark purposes. He could try to manipulate Naruto or those around him to keep the seal in place or even make it stronger for his own gain.
It could be a new character, like a young genin who has a natural affinity for seals. This character stumbles upon the mystery of the five - pronged seal during a routine mission in an old, abandoned temple. They are curious and determined, which drives them to uncover the secrets of the seal.
Another plot idea is to have a character who is not Naruto, perhaps a new OC (original character), inherit the knowledge of the Reaper Death Seal in an unexpected way. This character could then face the moral dilemma of using such a powerful and dangerous jutsu.
In some 'naruto memory seal fanfiction', the seal might be a tool for an enemy. They could manipulate Naruto's actions by selectively removing or altering his memories. This could create a complex web of mystery and conflict as Naruto tries to figure out what's going on and regain his true self.
One idea could be that the seal master from another universe comes to the Naruto world and teaches Naruto some ancient and powerful sealing techniques that were lost in the Naruto world. This could change the power balance in battles against the Akatsuki.
Perhaps the OC Seal Master is an outcast in their village because of their unique seal powers. They then get involved in a plot where they have to prove their worth by using their skills to protect the village from a mysterious threat. For example, an unknown force is causing seals all over the village to malfunction and it's up to the OC to figure out what's going on and fix it using their in - depth understanding of seal mechanics.
One idea could be exploring the psychological impact on the characters who bear the Caged Bird Seal. For example, how it affects their self - esteem and relationships with others in the Naruto universe.
Well, you could write a fanfic where there's a new villain in town who has a personal vendetta against the Hawaii Five - 0 team. This villain is using high - tech gadgets to commit crimes and the team has to figure out how to stop him. Or perhaps a fanfic that takes place during a big festival in Hawaii and there are a series of crimes that seem related to the event. It could also be interesting to write about a time - travel scenario where a member of the team goes back in time and has to make sure certain events happen to prevent a future disaster.
A plot idea could be that they start a secret project together. They have to work on it while staying five feet apart, but as they progress, they realize that their connection is deeper than the physical distance. They might face challenges from the medical staff or other patients, but their determination to complete the project keeps them going.