A cool plot could be that an ancient evil force resurfaces and it can only be defeated by the combined power of Naruto and Boruto. But there's a catch - they have to first overcome their generational differences and pride in order to work together. They start off fighting each other due to misunderstandings, but gradually realize they need each other to save the world.
Maybe a fanfic where Naruto and Boruto are pitted against each other in a virtual reality battle. It could be part of a training exercise that gets out of control, and they start using their real skills and emotions, leading to a intense and revealing fight.
Another interesting plot could be about a new villain that is a combination of the powers of all the previous villains in Naruto and Boruto. The characters would have to team up in new and unexpected ways to defeat this powerful foe. For example, Naruto and Boruto might have to combine their Rasengan and Vanishing Rasengan in a completely new way.
A plot where Naruto and Boruto have to team up to fight a new, powerful enemy that neither could defeat alone. This would allow for some great father - son bonding moments and also show how their skills complement each other. For example, Naruto's brute strength combined with Boruto's unique ninja techniques. It could also explore how Naruto imparts his wisdom about the ninja way to Boruto during the battle.
One idea could be a time - travel plot where Sarada goes back in time and meets a young Naruto. She could learn from his experiences and determination, and in turn, she might influence some of his decisions. This would create an interesting dynamic as they come from different generations but share common goals of protecting the village.
One plot idea could be Boruto getting lost in a mysterious forest during a training exercise. Naruto and Hinata then team up to find him. Along the way, they face some old enemies or new threats that test their skills and their relationship as a couple. Another idea is that Boruto discovers a hidden power within himself that Naruto doesn't understand, and Hinata has to be the one to bridge the gap between father and son by helping Naruto understand Boruto's new ability.
Another idea is a 'what - if' scenario. For example, what if Boruto was raised in a world where Naruto had failed to become Hokage? This could lead to a very different Boruto, perhaps more cynical or desperate to change the world on his own. The fanfic could explore how he would grow up and try to fix the situation his father couldn't.
A possible plot could involve a time - travel situation. Boruto and Mitsuki get sent back in time to the era of the First Hokage. There, they have to adapt to the different ninja world of that time. They meet the young versions of their ancestors and get involved in events that could change the future. This would test their knowledge of ninja history and their skills as they try to find a way back to their own time without disrupting the past too much.
One idea could be Boruto getting transported back in time and meeting a young Naruto. He could then help Naruto avoid some of the early hardships he faced, but also realizes that those hardships made Naruto who he is. Another could be Naruto and Boruto switching bodies for a day, which would lead to humorous situations as they try to navigate each other's lives. A third idea might be that Boruto discovers a hidden power within himself by training with Naruto in a special dimension where time moves differently.
Maybe there's a prophecy that only Naruto and Boruto together can fulfill. They have to embark on a journey to find a set of ancient artifacts. Along the journey, they face many trials and temptations. Their different personalities sometimes clash, but they learn to work together. For example, Naruto's impulsiveness might get them into trouble, but Boruto's quick thinking gets them out. This back - and - forth helps build their bond.
A great plot for 'naruto and boruto family fanfiction' could be a time - travel story. Boruto somehow gets sent back in time to when Naruto was a kid. He has to keep his identity a secret while also trying to prevent certain events from happening that could change the future for the worse. At the same time, he gets to see a different side of Naruto and the family dynamics back then, and this experience changes his perspective on his own family.
One idea could be a time - travel plot where Boruto goes back in time and meets kid Naruto. He could help Naruto in some of his early struggles and they form an unexpected friendship. This would also allow for some humorous moments as Boruto tries to explain modern things to Naruto.