Well, Naruto is the central figure for sure. But other characters like Kakashi could also be important. He might be the one guiding Naruto through the process of adapting to his new robotic body. And then there could be new characters introduced, perhaps other half - robot ninja created by the same process as Naruto, and they could either be friends or foes.
Well, in 'Naruto half robot fanfiction', a cool concept might be the integration of new technology into the Naruto universe. The half - robot Naruto could have advanced sensors that give him an edge in battle, like being able to detect hidden enemies or traps more easily. Also, his robotic parts could be customizable, allowing him to adapt to different combat situations by swapping out components.
Perhaps in this fanfiction, the technology that made Naruto half - robot was created by an ancient ninja clan long forgotten. Naruto then has to go on a journey to discover the secrets of his robotic half, including how to repair and upgrade it. Along the way, he uncovers dark secrets about the clan and their intentions, which could put the entire ninja world at risk if he doesn't stop it.
With Sasuke, their rivalry might take on a new dimension. Sasuke could be both intrigued and threatened by Naruto's robotic abilities. He might see Naruto as an even greater obstacle to his own goals, or he could potentially try to use Naruto's robotic side for his own purposes.
At first, Naruto might be a bit cautious. He's used to facing opponents in battle, and a strange new object like a robot could potentially be dangerous. But once he realizes it's not an immediate threat, he'd likely approach it with his usual enthusiasm. He might start asking it all sorts of questions, like 'What are you?' and 'Where are you from?' His reaction would be a mix of excitement and wariness.
In fanfiction, if Naruto is half - bijuu, it could mean he has enhanced physical abilities. For example, he might have greater strength and speed like a full - bijuu. His chakra reserves could also be much larger, allowing him to perform more powerful jutsu for longer periods.
Sure, there are probably fanfictions with this concept. Fanfic writers are known for their creativity in crossing over different fictional worlds. A 'Naruto is half Saiyan' story could explore how Naruto's life and the Naruto - verse in general would be affected. For example, how would his relationships with his friends and enemies change? How would the ninja world react to his new Saiyan abilities? It could also delve into the backstory of how he came to be half Saiyan, perhaps some kind of inter - dimensional or time - traveling event.
It could be a rogue god who sees the half - robot as a threat to the natural order. They might try to destroy it because they don't like the idea of a half - human, half - machine being in the world of demigods. Another possibility is a powerful Titan who was awakened and wants to use the half - robot's technology for their own evil purposes. Maybe the half - robot has some sort of power source that the Titan desires.
Well, a cool plot could be where the half - robot is a creation of Hephaestus gone wrong. Percy discovers it and has to figure out how to either fix it or stop it from causing chaos. It could also be a plot where the half - robot has a connection to Percy's past, like it was created using some of his essence from a past adventure. Or perhaps the half - robot is from a different dimension and Percy has to help it get back home while dealing with the problems it causes in his world.
One implication could be that Naruto has enhanced physical abilities. Angels are often depicted as strong and fast, so Naruto might have superhuman strength and speed. He could also have some sort of divine power, like the ability to heal or purify things. Another aspect could be his appearance. Maybe he has wings or a halo that he can hide or show at will.