Well, in some fanfictions, Naruto might obtain the black wings through a special chakra infusion. Maybe it's a result of some ancient Uzumaki clan power that was dormant within him and got awakened in a moment of extreme need, like when facing a powerful enemy.
Perhaps it could be due to a curse or a blessing from a mysterious entity. In the world of fanfiction, there are often strange and unorthodox ways for characters to gain new abilities. It could be that Naruto unknowingly made a deal with a powerful being who granted him these black wings as part of the bargain.
In some fanfiction interpretations, the black wings could represent a burden or a responsibility. Naruto is a character who often takes on the weight of the world. These wings could be a physical manifestation of the new challenges and duties that come with his growing power. For example, he might now have to protect not just his village, but also something related to the Uzumaki clan that the wings are connected to.
The black wings could give him an extra means of mobility. He could use them to quickly change direction during combat, swoop down on opponents from above, or make quick getaways.
Perhaps it's given to him by a mysterious figure. This figure could be from another dimension or a very old ninja who has been in hiding for a long time. They recognize Naruto's potential and power, and decide that he is the one worthy of wielding the black lightsaber. This could be part of a bigger plan to help Naruto defeat a new and powerful enemy that neither the ninja world nor the normal means of combat can handle.
Maybe they could be a result of some forbidden jutsu gone wrong. For example, Naruto might have been experimenting with a new form of chakra manipulation that accidentally summoned some dark energy which manifested as black wings.
Naruto is obviously a very popular character in these fanfictions, as the concept of him having black wings is central. Sasuke can also be a prominent character. He might be jealous of Naruto's new power, or he could be the one to help Naruto understand and control the black wings.
Well, it could symbolize great power. In many fictional concepts, wings often represent strength, freedom, or a connection to something divine. So Naruto having 12 wings might mean he has an extraordinary level of power, perhaps even a connection to a higher realm or a new form of chakra. It could also be a sign of his evolution as a character, making him stand out even more in the Naruto universe.
Maybe they could be a result of some ancient curse or blessing. For example, Naruto might have accidentally stumbled upon an old shrine during one of his adventures and unknowingly activated a spell that gave him the black angel wings. It could also be related to his Uzumaki heritage, perhaps there's some hidden power within his bloodline that was awakened in an unexpected way, causing the appearance of these unique wings.
There are fanfictions where the black wings on Naruto are related to some ancient jutsu or a curse. Maybe he got the black wings because he accidentally activated a forbidden scroll. In such stories, he has to find a way to either get rid of the wings or use them for good. It could involve a journey to find a sage or an old ninja who knows about this strange phenomenon.
In many fanfictions, Naruto might obtain the Uzumaki sword through a hidden inheritance. Maybe it was left behind by an ancient Uzumaki clan member and Naruto discovers it in a secret location, like an old, forgotten Uzumaki shrine.
Naruto's confidence would likely be boosted. Having black angel wings gives him a unique power and appearance. He might become more self - assured in battles, knowing he has this special ability. However, he could also face some envy from his peers, which might make him feel a bit isolated at times.