The main characters are obviously Naruto, his mom Kushina, and his dad Minato. Naruto is the protagonist of the Naruto series, and in this fanfiction, his parents play important roles in his life, whether it's through memories, time - traveling encounters, or spiritual visitations.
One possible plot could be Naruto getting to spend a day with his mom and dad in a special genjutsu - created realm. They could teach him new jutsu and share family stories he never knew.
It could be an unknown brother that was kept secret all this time. Maybe he was hidden away by some enemy of the village and trained to be a powerful adversary for Naruto.
One possible plot is that Naruto's brother is jealous of Naruto's status as a hero. He decides to challenge Naruto to prove himself. The fight might start with some basic exchanges of punches and kicks. But as it progresses, they both start using their more advanced ninja skills. Naruto may struggle because he doesn't want to hurt his brother too much, but he also knows he has to stop his brother's dangerous actions.
One possible plot could be that Naruto is mislead into believing his family has been possessed by some dark force. So, he has to fight them to free them. For example, an evil ninja might use a genjutsu on his family members, making them act against Naruto's will.
It could be an enemy who has the power of sound. This opponent might be able to create sonic blasts with their music. Naruto would have to figure out how to counter these sound - based attacks, perhaps by using his wind - style jutsu to disrupt the sound waves.
In a fanfiction where Naruto fights his parents, it could be a really emotional and complex situation. Maybe it's a result of some sort of mind - control or misunderstanding. Naruto, being a strong - willed character, would likely hold back at first, not wanting to harm them. His parents, on the other hand, might be acting out of some forced obligation or false belief. It could lead to a battle that ultimately ends with Naruto finding a way to break whatever spell or falsehood is causing the rift, and they'd have a tearful reunion.
In such a fanfiction, Naruto might first be shocked to see his dad. He could learn a lot about his family's past directly from his father. Maybe his dad would teach him some new and powerful jutsu that was passed down in the family.
In such a fanfic, Naruto might finally get to understand his family heritage better. His dad could teach him some new jutsu that only the Uzumaki family knows.
In such a fanfiction, the plot could be centered around a misunderstanding. Maybe Naruto's sister has been influenced by a villain who has made her believe false things about Naruto or the village. Naruto, being the hero he is, would initially try to talk to her but when she attacks, he has no choice but to fight back. It could also be a test of Naruto's growth, as his sister might be extremely powerful and he has to use all his skills and newfound powers to face her.