Sasuke could also be a suitable main character for such a fanfic. Given his thirst for power and his skills as a shinobi, if he were to obtain the Sword of Tengu, it would add another layer to his character development. He could use the sword to further his own goals, perhaps in a way that makes him question his motives and ultimately leads to a change in his path.
Naruto himself could be a great main character. Imagine Naruto finding the Sword of Tengu during one of his adventures. He could struggle at first to understand the sword's power, but with his determination, he would eventually master it and use it to protect the village in a new and exciting way.
How about a new character? A young shinobi from a small village who dreams of making a name for themselves. They discover the Sword of Tengu during a journey outside their village. This character could then have to navigate the dangerous Naruto world, facing both enemies who want the sword for themselves and also trying to figure out how to use the sword's power without succumbing to its potential dark influence.
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.
One possible ability could be enhanced cutting power. It might be able to cut through almost any material, even chakra - based defenses with ease.
Another possibility is that it's a minor character from the Naruto series who gets a chance to shine in this fanfic. They might have found the sword by accident and now they are determined to make it their own, facing many obstacles along the way as they are not as well - known or powerful as some of the main characters in the original series.
The theme of mystery also runs through 'naruto tengu fanfic'. The tengu itself is often a mysterious creature in these fanfics. Writers use this to create an air of intrigue, like the origin of the tengu, what their true motives are, and how they fit into the existing Naruto lore. This mystery keeps readers hooked as they try to uncover the secrets along with the characters.
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.
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.
Sasuke could be a good main character. He has the skills and the motivation. He's always been on a quest for power and knowledge, which could easily be tied into a spying storyline. He could be spying on other villages to gain an edge for Konoha or for his own personal vendetta.
One popular 'naruto tengu fanfic' is 'The Tengu's Pact in Naruto'. It has an interesting plot where the main character forms an unexpected alliance with a tengu in the Naruto universe. The story explores new powers and adventures that are quite engaging.
A powerful demon could be the main antagonist. This demon senses the power of the Yoru sword and wants to possess it. It starts causing chaos in the ninja world, and Naruto has to face this demon with the help of the sword. The demon could have some special abilities that make it difficult for Naruto to fight, like the ability to manipulate shadows or create illusions that are even stronger than normal ninja illusions.
Naruto himself could be the main character. Imagine him finding the holy sword and using it in combination with his ninja skills. It would make him even more powerful and add a new dimension to his battles.