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.
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.
One possible fanfic could be about Kakashi's father, Sakumo Hatake, having some kind of post -mortem influence on Naruto. Maybe Naruto discovers an old jutsu that was once used by Sakumo and tries to master it. This could lead to a series of adventures where Naruto learns more about the history of the Hidden Leaf through Sakumo's legacy.
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.
At first, it would be really awkward. Naruto would be shocked to find out that Kakashi is his father. But gradually, Kakashi would show more care and concern than just a teacher. He might start scolding Naruto less harshly and be more understanding. Naruto, on the other hand, would start to rely on Kakashi in a different way, not just for ninja training but also for emotional support. Their conversations would become more personal and less about just mission briefs.
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.
One common theme is the passing down of values. Naruto, being a great ninja, would want to pass on things like perseverance and loyalty to his son. Another theme is the exploration of their relationship, like how they communicate and understand each other. Also, the idea of living up to expectations is often there, as the son has to deal with being Naruto's son and the expectations that come with it.
In this fanfiction concept, it could bring a whole new dynamic to the Naruto universe. Kakashi having Naruto as a son would mean a different kind of training for Naruto. Kakashi's calm and strategic mind could shape Naruto in unique ways. Maybe Naruto would inherit Kakashi's love for reading, especially those naughty books, and it could add a comical touch to his character while still maintaining his determination to become Hokage.
In fanfiction, anything is possible. However, in the original Naruto series, Kakashi is not Naruto's father. But in the realm of fan - created stories, an author could come up with an interesting plot where Kakashi is Naruto's biological father, perhaps by creating some elaborate backstories and twists to make it seem plausible.
There are many interesting fanfictions on this topic. Some might explore the relationship between Kakashi's father, Sakumo Hatake, and the events in the Naruto world that we know of. It could delve into his past missions, his influence on Kakashi's upbringing even though he passed away early. Maybe in some fanfictions, he has a connection to some of the main plotlines that Naruto is involved in, like the overarching story of the shinobi world and its conflicts.