Well, it could be that Naruto discovers a new and powerful enemy that threatens the entire world. Maybe an ancient evil has been awakened. Naruto, with his unwavering determination and his powerful jutsu, would then embark on a journey to gather allies from all the hidden villages. He might have to overcome his own limitations and learn new skills along the way to be able to face this great threat. In the end, through his sheer willpower and the bonds he has with his friends, he defeats the enemy and saves the world once again.
A powerful and mysterious organization could be the main villain. They have been secretly manipulating events in the ninja world for years, and now they plan to use a powerful weapon to destroy all the hidden villages and take over the world. Naruto has to expose and stop them.
One possible scenario could be that Naruto, with his powerful jutsu and quick thinking, arrives in the world of Rias just in time to save her from a powerful enemy. Maybe it's a demon or a dark magic user. His speed and strength would be a great asset in this situation.
In this fanfic, Naruto might save Hiashi in a battle situation. Maybe Hiashi is facing a powerful enemy that he can't handle alone, and Naruto steps in with his strong ninja skills. For example, if Hiashi is being attacked by a group of rogue ninjas, Naruto could use his Rasengan to fend them off.
One possible scenario in a 'Naruto Saves Hiruzen' fanfic could be that Naruto uses his newfound powers. Maybe he has mastered a new jutsu that allows him to turn back time briefly. He then uses this power to go back to the moment when Hiruzen is in danger. Naruto's quick thinking and his never - give - up attitude would be highlighted in such a fanfic.
Perhaps Naruto discovers a prophecy that Hiruzen will be in danger. So, he starts to train extra hard to be able to face whatever threat is coming. When the time comes, he uses his speed, which he has enhanced through rigorous training, to reach Hiruzen before the enemy can land a final blow.
There's also 'When Naruto Saves Sakura from the Darkness'. In this one, Sakura gets trapped in a dark magic - created world. Naruto uses his new - found powers and his unwavering will to break into that world and bring Sakura back. It has some really interesting concepts about the Naruto universe and how Naruto's love for Sakura can overcome any obstacle.
It could be an unknown girl from a random village that Naruto just happens to pass by and save from a natural disaster, like a flood or a landslide. Naruto's quick reflexes and strength would allow him to rescue her.
One possible antagonist could be Orochimaru. He has always been interested in Naruto for his Nine - Tails power, so it would make sense for him to be a threat that Kakashi has to protect Naruto from.
The action aspect. When Naruto saves Hinata, there are often intense battles. For example, Naruto might use his Rasengan against powerful foes to protect Hinata. It's exciting to read about his skills in action.