One possible plot could be that Boruto does something really reckless, like using a dangerous jutsu without proper training. Naruto, as his father and the Hokage, slaps him to snap him out of his overconfidence and make him realize the seriousness of his actions.
It could be that Boruto is being influenced by the wrong crowd. He starts to show signs of going down a dark path. Naruto, seeing this and fearing for his son's future, slaps him in a moment of desperation to get his attention and try to steer him back towards the right way.
Maybe Boruto disrespects the legacy of the Hidden Leaf in some way. He could be making light of the sacrifices that Naruto and others made in the past. Naruto, being a strong advocate for the village's values, slaps him as a sign of discipline and to teach him a lesson about respect.
One possible plot could be that Ino says something really offensive about Naruto's dreams or his past. For example, she might mock his early days as a weak ninja in the academy. Naruto, who has grown and become more confident, slaps her in a moment of anger to defend his pride. Then, he realizes his overreaction and feels guilty, leading to a story arc about making amends and understanding each other better.
Maybe in this fanfiction, Naruto is in an alternate reality where he doesn't know Kushina is his mother. He might be misled by false information about Kushina being a threat. And when he confronts her, his hot - headed nature gets the better of him and he slaps her. But then, as the story progresses, he discovers the truth and regrets his actions.
Some fans might like it. They could see it as a way to show Naruto's strict parenting side and how he is trying to instill good values in Boruto. It would add a new dimension to their relationship.
Well, it could be that Naruto made a really stupid mistake that hurt Hinata's feelings deeply. Maybe he accidentally said something really mean about her family or her skills in front of everyone. So in a fit of anger, Hinata slaps him to show her extreme disappointment.
One possible plot could be that Naruto sacrifices himself to save Boruto from a powerful new enemy. Maybe an ancient evil resurfaces that is too strong for Boruto to handle alone, and Naruto steps in, using up all his chakra and ultimately dying in the process.
One possible interesting plot could be Naruto and Boruto getting transported to a parallel dimension where their roles are reversed. Boruto has to deal with the challenges Naruto faced in the past, like fighting powerful villains without the advanced technology he's used to. Meanwhile, Naruto gets to experience the modern ninja world from Boruto's perspective, including the new ninja tools and different social dynamics in the Hidden Leaf Village.
The story could also revolve around the relationship between Naruto and Hinata during this time. They grow even closer as they are about to start a new chapter in their lives. Hinata might teach Naruto some things about their family traditions related to pregnancy and childbirth, and Naruto would be eager to learn. This could be a story full of love, family, and the strength to face any obstacles.
Well, it could be a story where Karin has some knowledge about a strange phenomenon that's starting to affect Boruto's chakra. Naruto, as a protective father, gets involved. Karin might be the key to unlocking the mystery behind it. Maybe she has a personal vendetta against an old enemy who is causing this, and Boruto and Naruto end up helping her while also protecting the village from the potential danger.
One possible plot could be that Naruto sacrifices himself to protect Boruto from a powerful new enemy. Maybe an ancient evil has been awakened and Boruto is in its direct path. Naruto, being the hero he is, steps in and uses all his power to stop it. His death then becomes a catalyst for Boruto's growth, driving him to become stronger and more determined to protect the village in Naruto's memory.
Well, it could be a story centered around a festival in Konoha. Naruto and Hinata are preparing for the festival, and Boruto and Himawari are super excited. But then some strange things start to happen. Mysterious ninjas appear and seem to be up to no good. Boruto and Himawari get caught up in the mystery, and with the help of Naruto and Hinata, they figure out that these ninjas are actually from a far - off land and were just lost. In the process, the family bond gets even stronger.