Well, it could be about Naruto adopting Kisuke's laid - back yet intelligent attitude. Maybe he starts dressing in a more Kisuke - like style, with a long coat and a hat. He could also start using some of Kisuke's signature moves or strategies in battles, like using gadgets or outsmarting his opponents in a very Kisuke - esque way.
Well, it could mean that Naruto might adopt Ulquiorra's cold and detached demeanor. He might start speaking in a more monotone way, like Ulquiorra. Also, his fighting style could become more calculated and less impulsive, similar to how Ulquiorra approaches battles in a very methodical manner.
If Naruto were to act like Yujiro in a fanfiction, it would change his relationships too. He would no longer be the overly - friendly Naruto we know. He might become more aloof and selective with his friendships. His interactions with Sasuke could be different. Instead of constantly trying to bring Sasuke back with kindness, he might use a more forceful and intimidating approach, just like Yujiro would deal with those who oppose him.
The plot could involve a fusion of their powers. Naruto's chakra and his jutsu combined with Kisuke's abilities could create a really powerful force. There could also be a plot where Naruto is mistaken for someone in Kisuke's world and has to clear his identity while also trying to figure out how to get back to his own world. Along the way, he forms new friendships and rivalries in this new world.
One possible plot could be that Naruto starts adopting Deadpool's fourth - wall - breaking style. He might make jokes about his own story, like how he's always chasing Sasuke and how it's like an endless loop. For example, he could look at the reader and say something like 'You think I'll catch him this time? Maybe, maybe not!'.
The fanfiction could explore Naruto being in a situation where he has to act like Madara to deceive the enemy. He gradually gets too deep into the role and starts to actually think and act like Madara on a more permanent basis. His friends notice the changes in his personality, like his increased aggression and his new - found belief in power as the ultimate factor in achieving goals. They then try to bring the old Naruto back.
One possible plot could be that Naruto, after being exposed to some strange chakra or magic, starts to take on Grimmjow's aggressive and fearless attitude. He might become more impulsive in battle, like Grimmjow, and start to challenge his enemies without much thought for strategy at first. His friends would be confused by this sudden change in his behavior.
Well, one possible plot could be that Naruto starts to adopt Pain's view on justice. He might see the world as a place full of suffering that needs a radical change. He could begin to question the traditional ways of the Hidden Leaf Village and try to implement some of Pain's ideas in a more positive way, like finding a new system to ensure peace that doesn't rely solely on the power of the ninja villages.
His friends' reactions would be quite diverse. Kakashi, for example, might be intrigued by Naruto's new behavior. He could see potential in Naruto's new - found Kisuke - like qualities. The younger generation of ninja, like Boruto if he were around in this scenario, would look up to this new version of Naruto even more. They'd be inspired by his new cool - headedness and intelligence, while also being a bit in awe of his sudden change in demeanor.
It could be that Naruto is reincarnated as Kisuke Urahara. He then uses his Naruto - like determination and ninja knowledge to change things in the Bleach world. For example, he might teach some of the characters there his unique jutsu or his way of thinking about friendship and loyalty. He could also use Urahara's resources and intelligence to solve problems in a different way than Urahara usually does, adding a new dynamic to the Bleach storyline.
A really interesting plot twist could be that Naruto's Dante - like behavior is actually a result of a genjutsu cast by a hidden enemy. As he acts more and more like Dante, his friends start to suspect something is wrong and have to figure out how to break the genjutsu without harming Naruto.