The story could show Naruto teaching the so - called 'slave' about freedom and equality. For example, Naruto could use his own experiences of being an outcast in the village at first to relate to the 'slave' character. He can then show them that they have the power to be their own person and not be bound by any unjust rules. In this way, the story would be about empowerment and breaking free from oppression.
Perhaps it could be about Naruto finding someone who was in a really tough situation, like being forced to work for bad guys. Naruto then 'gains' this person in the sense that he rescues them. After that, the rescued person feels so indebted to Naruto that they become like a self - imposed helper to him, following him around to repay their debt in a non - slavish, more of a friendship - based way.
Madara Uchiha could also be an antagonist in this scenario. Even if he's dead in the original story, in the fanfiction, his influence or some sort of resurrection could occur. He might view Naruto's immortality as a hindrance to his own plans for the ninja world or simply be jealous of Naruto having such a power that he never had.
I don't think such a concept is in line with the positive themes of the Naruto series. The Naruto series promotes friendship, hard work, and positive values, so this kind of 'slave' relationship fanfiction may not be an official or positive - themed work.
No. Naruto has always been portrayed as a strong, independent character who overcomes challenges. Reducing him to a slave in fanfiction is not only inappropriate but also a very negative and untrue representation of the character. It's important to respect the essence of the original character and the positive message the series conveys.
If Naruto gains the power of Beerus in fanfiction, he would become extremely powerful. His already impressive combat skills combined with Beerus' god - like power would make him nearly unbeatable. He could easily defeat the toughest of foes in the Naruto universe with a single blow.
If Naruto gains the abilities of Kratos in fanfiction, he would become extremely powerful. Naruto already has his own set of powerful jutsu, but with Kratos' abilities like superhuman strength, enhanced combat skills, and his rage - fueled power, Naruto could defeat almost any enemy with ease. He might be able to take on stronger foes like Kaguya even more effortlessly and protect the Hidden Leaf Village in a much more dominant way.
In a fanfiction where Naruto gains One for All, there are a lot of possibilities. One for All gives the user enhanced strength, speed, and durability. Naruto already has a great deal of experience in combat and a strong will. This new power would allow him to face stronger opponents with ease. For example, he could take on the Akatsuki members more easily. Also, the way he trains and how he passes on his knowledge to others might change. He could potentially teach his friends how to better utilize their own powers in relation to One for All's abilities. His relationship with Sasuke might also be affected as they would have to re - evaluate their power levels in comparison to each other.
One interesting plot could be that Naruto discovers a hidden ancient jutsu during a solo mission in an uncharted land. This jutsu gives him the power to manipulate time on a small scale, like slowing down an enemy's attack. Another plot might involve Naruto making a pact with a powerful spirit that grants him enhanced strength and the ability to fly. There could also be a plot where Naruto is exposed to a strange energy source that unlocks a new form of chakra, which he then has to learn to control and use effectively against his enemies.
If Naruto got the Rinnegan in fanfiction, he would become even more OP (over - powered). His fighting style would be completely different. He could use the Preta Path to absorb chakra attacks, which means he could nullify a lot of his opponents' moves. This would make him a much more formidable foe. In terms of the plot, it might lead to new alliances and rivalries. Maybe some characters who were previously neutral would now see Naruto as a threat, while others would flock to his side to benefit from his new power.