A great plot for a 'Naruto Sword of Tengu' fanfic could involve the sword being a key to a hidden realm in the Naruto universe. The main character, by chance, comes across the sword and is transported to this realm. In this realm, there are new types of chakra and unique creatures. The character has to learn how to survive in this new place, make allies, and find a way to bring the knowledge and power from this realm back to their own world to defeat an emerging threat.
One idea could be that the Sword of Tengu has a hidden power that only the protagonist can unlock. This power could be related to an ancient jutsu that was sealed within the sword long ago. Another idea is that the sword has a spirit that communicates with the wielder, guiding them in their battles and adventures in the Naruto world.
One possible ability could be enhanced cutting power. It might be able to cut through almost any material, even chakra - based defenses with ease.
One idea could be that the main character discovers a hidden power within the Raijin Sword that gives them the ability to control lightning in a unique way. For example, they can transform the lightning into various shapes to attack or defend.
One idea could be that the Sword of Kusanagi has a hidden power that only Naruto can unlock. Maybe it has the ability to control natural elements in a new and unique way. For example, it could allow Naruto to manipulate water in a way that is different from his normal jutsu.
One idea could be that Yoru's sword has a hidden power that only Naruto can unlock. Maybe it's a power related to an ancient ninja art that was lost. Another idea is that the sword has a spirit that can communicate with Naruto and guide him in his battles. For example, the spirit could give Naruto advice on how to defeat stronger opponents. Also, the sword could be a key to a secret realm filled with powerful ninja tools and techniques that Naruto needs to master.
Well, in some fanfictions, Naruto might obtain the Sword of Tengu through a quest. Maybe he has to help a spirit or an ancient being in return for the sword.
A cool 'Naruto sword fanfic' idea could be about a sword that has a sentient spirit within it. The protagonist, who is a young ninja, discovers this sword and has to learn to work with the spirit to become stronger. The spirit could have its own motives and backstory, and together they face various challenges in the Naruto world.
Perhaps the wind sword was once wielded by a great ninja in the past who was related to Naruto's family. As he finds and starts using the sword, he begins to have visions of this ancestor and learns new jutsu techniques from these visions. This helps him in battles against the Akatsuki members who are after the sword's power.
One idea could be that Naruto characters are somehow transported into the Sword Art Online world. Naruto, with his never - give - up attitude, might quickly adapt to the virtual combat and start climbing the floors in the game. He could use his shadow clone jutsu to outnumber opponents during boss battles. Another plot could involve Asuna and Sakura teaming up. Asuna's sword skills combined with Sakura's medical ninjutsu would make them a formidable duo. They could explore new areas of the SAO world together and discover secrets that were previously unknown. Also, Sasuke might be intrigued by the unique sword - based combat in SAO and seek to master new sword techniques there, which could lead to some intense battles against SAO's top players.
An interesting plot idea for Naruto fanfic might be to focus on the life of a minor character. For instance, what if we told the story of a genin who never made it to be a chunin but still had a significant impact on the village in some other way? Or a story where all the ninja abilities are suddenly switched among the characters, and they have to adapt to these new powers while still facing their usual enemies. This could lead to some really fun and unexpected character interactions.
I really like 'Tengu's Aid to Team 7'. In this fanfic, a tengu becomes an ally to Naruto, Sasuke, and Sakura. It has a lot of action scenes where the tengu uses its unique abilities to help the team in their missions. The character development in this fanfic is also quite good. The tengu's presence forces the members of Team 7 to reevaluate their own skills and teamwork. It's a great read for any Naruto fanfic lover.