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 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.
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.
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 cool Naruto and Boruto fanfiction concept could be exploring the relationship between Sasuke and Boruto in more depth. Maybe Sasuke takes Boruto on a special training mission, similar to how he trained with Naruto in the past. This would allow Boruto to understand Sasuke's way of thinking and his past better. Also, a story where all the Konoha 11 have kids and they all train together could be interesting.
One idea could be Boruto going on a solo mission to a far - off land that has a unique chakra - based mystery. Maybe there's an ancient power there that's starting to awaken and Boruto has to figure out how to stop it from being misused.
One idea could be Naruto taking Boruto on a special mission to an old, forgotten land. There, they discover a hidden power that was lost in the past. Boruto struggles to control it at first, but with Naruto's guidance, he learns to master it. This would show their bond and Naruto's experience guiding his son.
One idea could be a time - travel plot where Boruto and Sarada are sent back to Naruto's era. They could interact with a younger Naruto and help him in some way that changes the future subtly. For example, they might help Naruto with a difficult mission that he barely survived in the original timeline, and this could lead to different relationships in the future.
One idea could be a time - travel plot where Boruto and Sarada are sent back to Naruto and Sakura's genin days. They could witness the early days of Team 7 and get involved in some of their missions, which would change the course of history in unexpected ways.
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.