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.
Another plot is where the girl is in some sort of self - imposed danger, like she's lost in a dangerous area or has made a deal with a bad guy. Naruto then has to use his wits and strength to not only save her physically but also get her out of the bad situation she got herself into. In some fanfictions, this also leads to the girl having a change of heart and becoming a better person thanks to Naruto's influence. This plot is interesting as it shows Naruto as a positive influence on others.
There's a fanfiction titled 'Saving the Girl from the Darkness'. In it, Naruto discovers a girl who has been trapped in a genjutsu for years. His own experience with loneliness and his strong will allow him to break through the genjutsu and save her. The story delves deep into Naruto's character, showing how his past traumas have made him more empathetic and determined to help those in need.
Perhaps the little girl is being targeted by a group of bandits. Naruto senses her distress and jumps into action. He battles the bandits using his shadow clone jutsu, overwhelming them. After saving her, he realizes she has no place to go. So, Naruto decides to take her back to Konoha. In Konoha, he helps her adjust to the new environment, and she in turn becomes a big fan of Naruto, following him around and learning about the ninja way from him.
His kindness will surely be highlighted. Naruto has always been someone who can't stand seeing others in trouble, especially a helpless little girl. His selflessness will also show as he risks his own safety to save her. He doesn't think about the rewards or recognition but just does what he believes is right.
Well, after Naruto saves the girl, she might become his friend. They could start training together, and she could learn some of Naruto's ninja skills. This would make her stronger and more confident, so she could stand up to the bullies on her own in the future.
Perhaps Anko is trapped in a genjutsu and Naruto uses his own experience with breaking free from illusions to save her. He could sense her distress and use his chakra to disrupt the genjutsu, freeing Anko. This would show Naruto's growth and his ability to help those in need, even a more experienced ninja like Anko.
The following are a few recommended ancient novels, in which the protagonist saves the girl:
1. " Lowly ": This novel tells the story of the male protagonist being the female protagonist's house slave. Due to the exposure of his relationship with the female protagonist, he was almost killed by the female protagonist's father. The female protagonist forced him to leave alive by threatening him with death. Seven years later, the male lead became the most trusted general of the new emperor, but he still had to be the humble bootlicker of the female lead. In the end, the two of them saved each other.
2. " Generals Are Always Bullied and Cry ": This novel tells the story of the female protagonist saving the slave male protagonist, teaching him self-redemption, and finally becoming a general.
3. [Feng Qiuhuang]: This novel showcased the bravery and wisdom of the female protagonist, and at the same time, laid the foundation for the development of their relationship.
The protagonists in these novels saved the girls through their own actions and efforts, and showed their growth and love story.
One key moment could be when Naruto jumps in front of a fatal attack aimed at Konan. His quick reflexes are crucial here. He takes the hit or deflects it using his own skills, like his shadow clone technique to create a distraction and then save Konan.