The plot could involve Kakashi adopting Naruto. Kakashi would then be responsible for Naruto's upbringing, teaching him not only ninja skills but also life lessons. For example, he could teach Naruto how to cook simple meals, which is a basic life skill. This would show the domestic side of their father - son relationship.
Maybe in the fanfiction, Naruto discovers that Kakashi has been secretly looking out for him since he was a child, much like a father would. This could lead to a series of events where Naruto tries to repay Kakashi's kindness. He might start by doing small things like cleaning Kakashi's apartment or bringing him his favorite food.
A possible plot could be that Kakashi and Naruto are on a long - term mission together. During this mission, they face many challenges. Kakashi protects Naruto from dangerous enemies, and Naruto in turn, shows his growth and determination. As they overcome these difficulties, their father - son relationship deepens. Kakashi realizes how much Naruto has become like a son to him, and Naruto sees Kakashi as the father he never had.
One possible plot could be that Kakashi discovers Naruto is his son in a surprising turn of events. Maybe there was some hidden truth about Naruto's birth that was concealed all this time. Kakashi then has to deal with the newfound father - son relationship while also guiding Naruto in his ninja training. He could be more protective and pass on some of his unique skills more intimately.
One possible plot could be that Naruto discovers he's Kakashi's son later in life. This revelation could cause a stir in the village and also make Naruto question his identity. He might then strive to learn more about his father and his own heritage in a different way than in the original story. Kakashi, on the other hand, might have to deal with the new situation and the feelings that come with it, like guilt for not revealing it earlier or worry about Naruto's reaction.
In a fanfiction, Kakashi might reveal to Naruto that he knew his father very well. He could share stories about Minato, which would make Naruto feel closer to his dad. Kakashi could also give Naruto a special gift that once belonged to Minato, symbolizing the connection between them as a father - son - like relationship.
The plot could revolve around a time -travel scenario. Naruto somehow gets sent back in time and meets Kakashi's father. Together, they could work on changing some of the events that led to the darker times in the village's history. For example, they might try to prevent certain tragedies that affected Kakashi's family.
Well, perhaps Harry could inherit some of Kakashi's ninja skills along with his wizarding abilities. He might use his Sharingan (if he inherits it) to detect magic in a different way or use ninja stealth in the wizarding world. Maybe he would be an outcast in both worlds, not fully fitting into the wizarding society because of his ninja - like traits, and not fully accepted in the ninja world because of his magic.
One possible plot could be that Kakashi is under a genjutsu. In this fanfiction, an enemy ninja might have cast a powerful genjutsu on Kakashi, making him see Naruto as a threat to the village. So, Kakashi attacks Naruto, but Naruto, being the understanding person he is, tries to break the genjutsu instead of fighting back right away.
In this fanfiction, the plot might revolve around the relationship between Naruto and Kakashi as master and apprentice. Kakashi could be guiding Naruto not just in combat skills but also in understanding the deeper meaning of being a shinobi. They might go on special missions together where Naruto has to rely on Kakashi's wisdom and training more than his own brute strength. Also, Kakashi might share some of his own past experiences with Naruto, which would help Naruto grow both as a fighter and as a person.
One possible plot could be that Naruto and Kakashi enter a singing competition in the Hidden Leaf Village. Naruto, with his energetic personality, might choose a loud and inspiring song, while Kakashi could pick a more mellow, soulful tune. They face various challenges during the competition, like dealing with tough competitors and stage fright.
Well, one possibility could be that Kakashi takes Naruto under his wing and starts training him more intensively. He might teach Naruto some of his own special jutsu and also help him deal with his inner demons related to being an orphan. Another aspect could be Kakashi helping Naruto with his schoolwork at the ninja academy, which in turn helps Naruto gain more respect from his peers.
The plot could involve Naruto having a more stable and nurturing upbringing under Kakashi. Kakashi would be strict yet caring. He would make sure Naruto is well - educated in both academic and ninja aspects. They could go on missions together earlier than in the original story. Naruto might develop a different personality, more confident and less impulsive perhaps, as he has Kakashi's guidance from a young age. Also, the story could explore how Naruto's presence changes Kakashi, making him more open and less solitary.