Sasuke could be a likely candidate in a sense. Given his skills as a ninja, his Sharingan which gives him an edge in combat and perception, and his past as a sort of 'rogue' ninja. He could be in a situation where Naruto has to hire him for a special mission that requires his unique abilities. Another possibility is Kakashi. He has a vast array of skills, is very intelligent, and could easily take on the role of an assassin if needed, even if it goes against his normal moral code slightly. He would do it for Naruto's sake.
Jiraiya could be an interesting assassin master. He already has a lot of knowledge and skills that he could pass on to Naruto in a more assassin - like way. His experience in espionage and combat would make him a great fit.
Well, it depends on the specific fanfiction. There are countless Naruto fanfictions out there, and each author has their own vision. While the original Naruto is far from a cold assassin, in the realm of fan - created stories, the possibilities are endless. Some fanfictions might do this to add an element of shock or to explore a more edgy and mature version of the Naruto character.
A highly trained assassin with both ninja and pirate skills could also be the most powerful. Imagine an assassin who has mastered the art of silent killing like a ninja but also has the knowledge of poisons and navigation like a pirate. This character could move in the shadows, taking out opponents without being detected, and using their diverse skills to outwit any enemy, be it a powerful ninja like Naruto or a fearsome pirate captain.
Well, Naruto's ninja skills like his shadow clone jutsu could be used in a modern assassin context to create diversions. He could send clones to different locations to mislead his targets or their security. His speed and agility, which are ninja traits, would also make him a very elusive assassin in a modern cityscape.
He would probably face other assassins. In the modern world of this fanfic, there could be a whole underground network of assassins competing for contracts. Naruto would have to outwit them to get the jobs he wants or to protect his own life. There could also be powerful criminal organizations that he has to take on. These organizations might have advanced weaponry and security systems that Naruto would need to bypass.
No, not really. Naruto is mainly known for its story about a young ninja's journey, with themes like perseverance and loyalty. While assassin - based fanfiction exists, it goes against the general positive and heroic tone of the original Naruto series that most fans love. So, it's not a widely popular genre within the Naruto fan community.
One common theme is the struggle with identity. Naruto, who is known for his bright and positive nature in the original series, has to come to terms with being an assassin, which is a much darker role. Another theme is secrecy. He has to keep his new identity hidden from his friends and loved ones.
One could imagine a fanfiction where Naruto, with his fox - like powers, teams up with an assassin inspired by Altair. Maybe they are on a quest to stop a powerful evil that threatens their respective worlds. They could learn from each other's skills, Naruto teaching Altair - like character about chakra, and the assassin teaching Naruto some stealth techniques.
The fanfiction could focus on how Naruto's ninja skills blend with the Fox Assassin's abilities in an Altair - style setting. They might be in a city full of political intrigue and have to use stealth and combat skills. Naruto could use his shadow clones to gather information, while the Fox Assassin uses his speed and agility.