Yes, there are likely fanfictions out there with such a concept. The Naruto fandom is vast and creative, and crossovers with historical or other fictional characters like Sasaki Kojiro are not unheard of. Some fans might be intrigued by the idea of Naruto having some sort of connection or admiration for Sasaki Kojiro and create stories based on it.
Well, first try the big fanfiction hubs. FanFiction.net has been around for a long time and has a huge Naruto section. Search for the specific title or just the names 'Naruto' and 'Sasaki Kojiro' in the search bar. Another option is AO3. It has a more diverse and inclusive collection of fanfictions. Sometimes, Naruto fan communities on social media platforms like Reddit or Tumblr might also be able to point you in the right direction if you ask for help finding this particular fanfiction.
" The Demon King's War in Japan " is a historical novel written by the author Undear. The general plot of this novel is as follows:
The necromancer traveled to the Warring States Period in Japan and saw Nobunaga, who had nothing to do with right and wrong, die in front of him. The necromancer wanted to return to the beginning of everything with curiosity, but an accident happened in magic, causing a change in time and space. When he woke up, a little girl named Kinoshita Fujikiro appeared in front of him.
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" Death: From the Beginning of the Rule of the Void " was a light novel by author Ji Ji Huang. The general plot of this novel was:
The strongest ice and snow type sword, the Ice Wheel Maru, was recognized as the sword that could match the Flowing Blade.
However, the person who could unleash the power of this knife was not the genius youth that was rarely seen in a hundred years in the Corpse Soul World, but the man who was once abandoned by the Corpse Soul World.
" He's the most perfect piece of work I've ever seen in my life. He has the potential to surpass me in the future."
" Uno Flower Eight Thousand Streams," he said," He's a man that's hard to forget. I'm looking forward to being alone with him."
Facing the invincible Minotaur Ichito, Sojiro sneered." Amagasaki Ichigo, you're not the only one who can completely turn into a phantom. Don't play with wild beasts in front of me!"
For the bandit Sojiro, the meaning of his life's struggle was to overthrow the Soul World, which was built on the aristocratic exploitation system.
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" Muye's Black Death " was a light novel by author Yang. The general plot of the novel was:
White Night brought the sword back to the Naruto World and received the buff from the Death God's ability. White Night, who had mastered an alternative power, realized that Ninja Realm seemed to have changed. "Shoot him! Divine Spear!" "Sitting in the frosty sky! Ice Wheel Pill!" "Shatter! Ethereal Mirage!" "Run! The Black Death God was here! The higher-ups said that we can give up the mission and retreat!"
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The book " Muye: Dimensional Cultivation " was a light novel by the author, YR Yueye Guanxue. The general plot of this novel was:
" I saw your death. You will die."
" Sister Ziyuan, you must be joking. I won't die even if that idiot Naruto dies."
"What does it have to do with me?" Also, Big Brother, you're just a traitor now, okay? When this mission is over, I'll bring you back even if I have to break your limbs!"
"Children are really naughty. What are the Wangliang!"
.....
"Where did you get your immortal technique?"
"Any objections?"
"No, you're awesome!"
…。
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" A Character Model at the Beginning " was a light novel by the author Shun Cen. The general plot of the novel was:
He had never expected that his good friend who had entered the Main God's Space would actually destroy the Main God's Space and give him a Main God's Space fragment. This thing was good. Changing the storyline to obtain origin points. Consuming origin points could allow one to traverse worlds and draw character panels. He looked at the world he was in, the Ghost Destroyer Blade. He then looked at his character panel, which read,'City Maruyin.' "Isn't this killing?" It was estimated that Ichimaru Ginobu from the Ghost Blade, Amagasaki Ichigo from the Incantation Return, and Aizen Yuusuke from One Piece would be the three volumes of the Death God character in the early stages, and the rest would be undecided. [Each scroll isn't related to each other. You can skip the scroll.]
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Naruto: The Dark Ning Ci was a fantasy novel written by the author, Mu Xingqiu. The general plot of this novel was:
The young Su Yan was watching anime at home when his soul suddenly transmigrated to Ningci Hinata. Ningji Hinata was the most tragic of the twelve cockroaches. As the most talented genius in the world, he had actually died to a small ninjutsu technique from Ten Tails. Why was fate so unfair? Work hard? Bullsh * t! Naruto had always been a world where bloodline mattered! When Su Yan's soul transmigrated into Ning Ci's body. Su Yan decided to take over Ning Ci's identity and resist fate. He wanted to turn dark! He wanted to press Naruto and Sasuke to the ground and rub them against each other! It was the time for the Chuunin exam, so he still had a lot of time. He decided to seek refuge with Orochimaru and obtain the blood inheritance limit of Junmalo. Then, he would kill the group and seek refuge with Xiao!
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" Half-Demon Me Carrying Broken Iron Teeth and Rushing to the Soul World " was a light novel by the author, Frost Flower Transformation. It was a derivative Doujinshi novel. The general plot of this novel was:
Makoto Hojo, who had transmigrated from Inuyasha and Death, found himself in front of the Imperial Divine Tree of the Twilight Shrine. When he met with the Twilight Kagome for the first time, he was attacked by the Void. In order to protect the beautiful girl, he decided to transform into a half-demon and fight against the powerful Void. Aizen's plot to seize the jade is still brewing. Ichigo Amagasaki has not awakened the power of death. Rugia Kuoki is actually on good terms with Kagome Tachibana. Asami Renji, you are in danger.
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" The Beginning of Time Travel: The Extermination of Ghosts " was a light novel written by the author who had become a god in jabber. It was a fantasy novel. The general plot of this novel was as follows:
Wang Hao, who had traveled in time, thought that it was just an ordinary ancient Japanese era, but as he went deeper into the chaotic era, more and more extraordinary powers were revealed. Ghost clan? Ninja? So what? They are destined to submit to me and humbly pray for my mercy! P.S. This book is also called.
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Naruto: The Strongest Dominator was a light novel written by the author, a derivative doujinshi novel. The general plot of the novel was:
He had transmigrated to the Naruto World and became one of the three major families of the Koba family. His eyes had changed and he had gained the ability to look into his own body. He had the ability to control everything in his body while looking into his own body. He had accidentally discovered the secret of his ancestor and had embarked on a different path from the Six Paths Immortal. His new book," From the beginning of treating Naruto," had been uploaded! If you like it, you can pay attention to it...
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" From Naruto to Death " was a light novel by the author, Hu Yan Chunqiu. The general plot of the novel was:
"Uncle, when are we going to the tomb again?"
Orochimaru: " Interesting. I didn't think that you could revive like this?"
"Little Sheng, I don't have money. I'm going to the tomb."
Hu Yisheng scratched his head…I'm really not robbing tombs. I will become stronger if I kill myself. Why don't you believe me?
Musashi and Kojiro appeared in "Musashi of the Elves". Musashi often said,"Saber Snake, slow down. You're now a Lucky Snake, not an electric fan. Hey, why aren't you moving? It's continuous, you know?" Kojiro's words in "Elf's Early Registration" were: "Boss Sakaki, the operation has been exposed. The Alliance has sent a search officer. What was there to be afraid of? If he killed that search officer, he wouldn't be exposed. Yes, boss. Wait... Who was that investigator? The informant said his name was Su Chen. Inform all members to cancel the operation and retreat!" I hope you like this fairy's recommendation. Muah ~😗
In Pokémon, Musashi and Kojiro's lines were as follows:
Musashi: Welcome to the world of Pokémon! I am Musashi, a powerful swordsman.
Kojiro: Hello, I am Kojiro, a brave archer.
(The two meet and start talking)
Musashi: Wow, you're awesome! I am Musashi, a powerful swordsman. Are you also very powerful?
Kojiro: Of course, I, Kojiro, am also a brave archer.
Musashi: We're from the same world, we're both Pokemon lovers. What kind of pet do you like?
Kojiro: I like Pikachu. It's very cute.
Musashi: I like Pikachu too. It's one of my strongest pets. But you know what? Pikachu is actually very dangerous. It can sometimes get out of control.
Kojiro: Oh, I know. I'm worried about Pikachu too.
(The two continue to talk and learn more about Pokémon)