One idea could be a story where Naruto discovers he has a hidden bloodline that combines the Uchiha and Senju powers. He struggles to control this new power while also facing threats from old enemies who fear his potential. Another plot could involve a group of ninja with multiple bloodlines coming together to form a new clan, and Naruto has to decide whether to join them or not.
Well, in a multi - bloodline Naruto fanfiction, a great plot could be that Naruto is accidentally infused with the bloodline of the Hyuga and the Uzumaki. This gives him the Byakugan along with his already strong chakra reserves. He then uses these new abilities to uncover a conspiracy within the Hidden Leaf Village that involves some of the elders suppressing certain bloodline traits. He has to fight against this system while also mastering his new powers.
A possible plot in multi - bloodline Naruto fanfiction is that there is a prophecy about a ninja with multiple bloodlines saving the ninja world from a new, unknown threat. Naruto, being the main character, gradually discovers he has the blood of the Nara, Inuzuka and Aburame clans in addition to his Uzumaki heritage. He must learn to use the unique abilities of each bloodline, like the Nara's shadow manipulation, the Inuzuka's beast - like senses and the Aburame's insect control, to face this new threat and prove himself as the savior of the ninja world.
Well, in 'naruto multi bloodline fanfiction', the exploration of how different clans' bloodlines interact is really cool. You might see a story where a character has the Byakugan and can also use the Nara clan's shadow manipulation in a new and unexpected way. It allows for a whole new level of creativity in the Naruto universe.
One interesting plot idea could be Naruto being transported to a different anime universe, like the world of One Piece. He could team up with Luffy and his crew to face a common enemy. Maybe they have to battle a powerful villain who has the ability to control both chakra and Devil Fruits. Another idea is Naruto entering the Bleach universe and learning about Soul Reapers and Hollows. He might develop new powers by combining his ninja skills with the spiritual energy in that world.
Perhaps a plotline where the character with the godlike multi - bloodline has to hide their true nature from others in the Naruto world. This could create a lot of tension and mystery as they constantly have to be on guard not to reveal their secret, while also trying to use their powers subtly to help their friends and the village.
One interesting idea could be alternative endings for Naruto's story. For example, what if Naruto didn't manage to bring Sasuke back to the village? Another could be exploring different relationships between characters in more depth, like how Hinata and Naruto's relationship might have developed in a different way. And there might be ideas about new jutsu or powers that the characters could have, which would change the whole dynamic of the battles in the Naruto universe.
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.