One interesting plot could be the discovery of Kakashi's father's hidden jutsu that he passed down secretly. Maybe Naruto stumbles upon an old scroll related to it during one of his adventures. Another could be a story where Kakashi's father returns as a spirit to guide Kakashi in a difficult situation and Naruto gets to witness this special bond.
A plot might involve Kakashi's father mentoring Naruto in a unique way. Since Kakashi's father was known for his strong sense of justice, he could help Naruto understand the true meaning of being a shinobi on a deeper level. For example, he could teach Naruto how to make difficult decisions when the line between right and wrong is blurred, which is something Naruto often struggles with.
Perhaps Female Kakashi and Naruto are on a mission to rescue a group of hostages. Along the way, they face many challenges and have to rely on each other's unique skills. Female Kakashi uses her Sharingan in creative ways to outwit the enemies, while Naruto uses his new Rasengan variations. Their bond deepens as they work together, and it could lead to a new kind of friendship or mentorship in the story.
Another possible plot is that Kakashi's adoption of Naruto draws the attention of some hidden enemies. These enemies might see Naruto as a threat because of his potential and Kakashi's influence. So they try to target Naruto, which leads to a series of intense battles and adventures where Kakashi has to protect Naruto and help him grow stronger to face these threats.
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.
Maybe in the fanfiction, after a dangerous mission where Kakashi gets severely injured, Team 7 becomes possessive out of fear of losing him. They start interfering in his solo missions, insisting on accompanying him all the time. This causes some tension between Kakashi and the higher - ups in the village who think Team 7 is being too overbearing. However, Team 7 doesn't care and is determined to keep Kakashi safe.
One interesting plot could be a story where Sasuke and Sakura have a child, and Naruto and Kakashi become like uncles to the child. They all live in the same village and face new threats together, with the new generation learning from the old. For example, the child might inherit Sasuke's sharingan and Sakura's medical skills, and Naruto and Kakashi help train the child to be a great ninja.
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.
One interesting concept could be a story where Naruto has to draw Kakashi's face as part of a training exercise. He struggles to capture the mystery and calmness in Kakashi's eyes. Another could be a time - travel fanfic where Kakashi's face in his younger days is a key element in changing the future of the ninja world. For example, someone from the future sees Kakashi's face in an old photo and realizes a connection to a major event that needs to be altered.
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.
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.
Well, in some time travel Kakashi fanfictions, there's a plot where Kakashi goes back in time right after Obito's 'death'. He tries to save Obito in a different way, not just by taking his eye. He could change the whole course of events that led to the formation of Akatsuki and the many tragedies that followed. This would completely rewrite the story of Naruto in many ways.