A plot could revolve around a Naruto - like character with the Adamantium bloodline who embarks on a journey to find others with similar bloodlines across different hidden villages. Along the way, they learn about the origin of the Adamantium bloodline, which is tied to an ancient and powerful clan. This discovery leads to a conflict as other villages see this as a threat and try to stop the character from uniting these bloodline - bearers.
Perhaps a plot where the Adamantium bloodline in the Naruto universe gives the wielder the ability to transform their chakra into an Adamantium - like substance. A young ninja with this bloodline struggles to control this power at first. As they train, they find out that this power can be used not only in combat but also for things like building impenetrable defenses for the village. However, a group of rogue ninjas wants to steal this power for their own evil purposes.
In 'naruto adamantium fanfiction', perhaps there could be a plot where Naruto discovers a way to infuse his chakra with adamantium - like properties. This would not only enhance his physical attacks but also his ability to defend. It could lead to new jutsu development that combines the power of his chakra and the strength of adamantium.
In a fanfiction, you could have a scenario where an enemy uses a dark form of Bakuton bloodline power. Naruto and his comrades must find a way to counter it. They seek out an old hermit who has some knowledge of the Bakuton bloodline's weaknesses. Along the way, they learn more about the bloodline's connection to other elemental powers in the Naruto world, and how it can be used for both destruction and creation.
One idea could be a story where a character with the Shikotsumyaku bloodline discovers a new and powerful bone - related ability that no one in their clan has ever had before. This could lead to them being both feared and respected within the Naruto universe.
One interesting plot idea could be a story where a new character discovers they have a hidden Kaguya bloodline ability that has been dormant for generations. They struggle to control it at first, causing chaos in their village. Another could be a time - travel fanfic where a character goes back to the era of Kaguya and tries to change the course of history regarding the bloodline. Maybe they want to prevent the spread of the more dangerous aspects of the bloodline.
One idea could be a character having a bloodline that combines Naruto's Uzumaki chakra with Sao's game - like abilities. For example, they could have the Uzumaki's massive chakra reserves which they use to power up unique Sao - style skills in combat, like super - fast sword strikes enhanced with chakra. Another plot idea is a story where the bloodline causes a rift between different factions. Some see it as a threat while others as a new hope for their world. This could lead to all kinds of political intrigue and battles.
One idea could be a story where members of the Organization 13 with different bloodlines form an uneasy alliance to take on a common enemy. Maybe a powerful rogue ninja who threatens the entire ninja world.
A really interesting plot could be a character who discovers they have a bloodline that is a combination of two powerful clans' abilities. This creates a unique set of powers that no one has seen before. The character then has to struggle with learning to control these powers while also facing the jealousy and fear of others in the ninja world who see them as a threat.
One idea could be that Naruto discovers a hidden bloodline within himself that gives him the ability to control time on a small scale. He could use this new power to outwit his enemies during battles. For example, he freezes time briefly to dodge a powerful attack and then counterattacks while his opponent is still in a state of confusion.
One interesting plot could be a character with the flame bloodline being exiled from their village due to fear of their power. They then have to journey to prove their worth and that they can use their power for good. For example, they might encounter other outcasts and form a unique group.
A story could revolve around a conflict between different clans due to the discovery of the kami bloodline. Some clans might see it as a threat to their power, while others might want to ally with the bearer of this bloodline. This would set off a chain of events including battles, political intrigue, and the forging of new alliances within the Naruto world.