The plot might involve Naruto making the robot to replace himself when he's away on long - term missions. The robot would look like him and act like him, but it would have some glitches at first. These glitches could lead to some comical situations in the village, like the robot accidentally using a powerful jutsu in the middle of the market. As the story progresses, Naruto works to fix the glitches and make the robot a reliable substitute.
A different plot could be that Naruto discovers an ancient blueprint for a powerful robot while on an adventure. He decides to build it in secret because he's not sure if it's a good or bad thing. Once the robot is built, it has a mind of its own and starts causing chaos. Naruto then has to figure out how to control the robot and use its power for good, all while keeping it a secret from the village elders who might not approve of his creation.
Perhaps Naruto makes the robot as a tool to help around the village. It could assist in construction, or in taking care of the elderly and the young. Since Naruto is always looking out for the well - being of his village, a robot could be a great addition.
The plot could involve a princess - like robot from another dimension coming to the Naruto world. She might be made of bubblegum - like material which gives her unique abilities. She could team up with Naruto and his friends to fight against a common enemy, perhaps using her bubblegum powers to trap foes or her robotic strength to overpower them.
Perhaps in the fanfiction, the robot army is a result of some mad scientist's experiment in the Naruto universe. Naruto and his friends have to figure out the weaknesses of these robots, which could be related to chakra or some specific ninja techniques. They might also encounter some robots that can copy ninja abilities, adding more challenges to the story.
Well, one possibility is that Naruto is turned into a robot by some kind of advanced jutsu gone wrong. He might then struggle to adapt to his new mechanical form. For example, he could find it hard to perform his regular ninja moves in the same way. Maybe he would initially be rejected by his friends until they realize his inner self is still the same Naruto they know and love.
One possibility is that Naruto's transformation into a robot could change his relationships. His friends might be initially shocked and have to learn to trust this new robotic version of him. He could also face new enemies who are specifically targeting him because of his unique robotic - ninja nature. His sensei might have to train him in different ways to make use of his robotic abilities, like teaching him how to maintain and upgrade his robotic parts.
One possible plot could be that the breeding robot is designed for a post - apocalyptic world where humans are scarce. The main character discovers the robot and tries to reprogram it to help repopulate the human race in a more ethical way. This could involve a lot of moral dilemmas and scientific exploration.
One possible plot twist could be that Naruto's smoke jutsu actually hides a powerful secret technique. For example, instead of just being a simple smoke cover, it could be a way to teleport or to create clones that are undetectable within the smoke. Another twist might be that an enemy figures out a way to turn Naruto's smoke jutsu against him, perhaps by using the smoke to spread a harmful gas or illusion that affects Naruto when he uses the jutsu.
Maybe Naruto creates the robot army as a way to bridge the gap between the ninja villages. He uses them for peaceful purposes like construction and rescue operations at first. But then, a rogue group tries to steal the robots and use them for evil, so Naruto has to fight to protect his creation. Well, in this fanfiction, the robots could be powered by chakra, which gives them an interesting twist. They might also be able to learn ninja techniques from Naruto and the other ninjas, making them a formidable force not just in terms of brute strength but also in combat skills.
Well, it could be about the robot having some unique experiences in the teenage world that are a bit out of the ordinary. Maybe she discovers new emotions that are more intense than what she was programmed for, like a very strong friendship that has some 'lemon' - like tangy or different elements to it. For example, she might get into a situation where she has to protect her friends from a new kind of threat while also dealing with her own internal changes.
Perhaps it's for exploration. Naruto is always curious about the world outside. The robots can be sent to explore dangerous or uncharted areas where it might be too risky for humans to go. They can collect information and report back to Naruto.