Perhaps he had an encounter with a powerful monkey - themed ninja or a mystical monkey creature. This encounter could have resulted in a transformation or a gift that gave him the monkey tail. For example, he might have saved a sacred monkey in a forest and as a reward, it bestowed upon him this unique feature.
There's a 'naruto monkey tail' fanfiction where Naruto's monkey tail starts to glow during a full moon and transports him to a parallel ninja world. In this world, all ninjas have some form of animal trait, and Naruto has to find a way back while also learning new skills from this strange place.
One interesting 'naruto monkey tail' fanfiction could be about Naruto discovering a hidden power within his monkey tail. Maybe it gives him enhanced agility and the ability to climb like a real monkey. This could add a new dimension to his fighting style.
Well, it could potentially enhance his balance and agility. Just like a real monkey, the tail might act as an extra limb for Naruto. He could use it to swing from trees or structures in the ninja world more easily, giving him an edge in forest - like battle terrains. Also, it might be used for some unique jutsu combinations, like using it to direct the flow of his chakra in a more precise way.
"How Ugly Can You Be?" was an ancient romance novel. The female protagonist had the tail of a little monkey. I recommend this book to you. The plot is interesting. I look forward to your reading experience. I hope you like this fairy's recommendation. Muah ~😗
There are likely fanfictions where Naruto's immortality in the Fairy Tail setting gives him unique powers. For example, he might be able to combine his ninja skills with Fairy Tail magic in ways that no one else can. His immortality could also mean he has an infinite amount of time to master different types of magic, making him an extremely powerful and feared figure in the Fairy Tail world.
One possibility in this fanfiction could be that Naruto gains new and unique combat skills. Monkey D. Dragon is known for his revolutionary ideas and powerful abilities in the 'One Piece' world. Under his training, Naruto might learn different ways of strategizing and approaching battles, perhaps incorporating some of the more unorthodox fighting styles from the 'One Piece' universe. This could lead to Naruto becoming even more formidable, not just in terms of his ninjutsu, but also in his ability to lead and inspire others in a different way, much like how Dragon has an impact on the 'One Piece' world.
One common theme is the idea of the monkeys having special powers. Just like how different ninja clans have unique abilities, the monkeys in these fanfictions often possess powers that are different from regular Naruto abilities.
I'm not sure of a specific one off - hand, but it could be a fanfiction where Naruto's tail is a key to unlocking a hidden dimension. In this dimension, there are new forms of chakra and powerful jutsu that he can learn. The story could follow his journey to discover the secrets of this dimension with the help of his tail.
In fanfiction, anything can happen. The author might create a crossover scenario where Naruto somehow gets the Sharingan and ends up in the Fairy Tail universe. It could be due to some magical or scientific experiment gone wrong or right, depending on how the story is framed.