Obviously Naruto has to be one of the main characters. He'd be the energetic and sometimes clumsy student who is always getting into trouble but has a heart of gold. Sakura would also be a main character, the smart and strong - willed girl who is often exasperated with Naruto's antics. And Sasuke, the cool and aloof student who has a mysterious past and is the object of many students' admiration.
One idea could be a sports competition at Konoha High School. Naruto could be on the track and field team, trying to break records. Another is a school play where the characters have to act out historical ninja battles in a comical way. Maybe there could also be a mystery involving a stolen scroll from the school's ninja history museum.
Naruto is definitely one of the most popular characters. His energetic and determined personality makes him a central figure in many fanfictions set in Konoha High School. He's often the one getting into trouble and then finding solutions.
In some fanfictions, there could be a plot where Hinata is a shy but brilliant student at Konoha High School. She might have a secret admirer, and it turns out to be Naruto. The story could then revolve around how their relationship develops within the high school setting, with all the typical high school drama like jealous classmates and exams.
At Konoha High School, their relationship could be shaped by school events. For instance, during a sports day. Naruto is all about winning and showing off his strength. Hinata, on the other hand, is more concerned about the team spirit. Initially, Naruto might not understand Hinata's perspective. But when he sees how her approach benefits the whole team, he realizes how amazing she is. This realization could be the start of a deeper connection between them, as he starts to respect and like her more.
One possible fanfiction could be about Sasuke and Sakura being partners for a school project at Konoha High School. Sasuke, being his usual aloof self at first, but as they work together, he starts to see Sakura in a new light. Sakura, on the other hand, is determined to break through Sasuke's cold exterior.
One possible plot could be that Naruto and Sakura are paired up for a school project. Naruto, being his usual enthusiastic self, wants to do something really grand while Sakura is more focused on getting a good grade. They start off bickering but as they work together, they discover new things about each other and their relationship deepens, much like in the original Naruto series where they grow closer over time.
Maybe a plot where there's a new student at Konoha High School who seems to be a threat to the harmony. Naruto, being the hero - like character, steps up to figure out what's wrong. Hinata, secretly in love with Naruto, supports him from the sidelines at first. But as the situation gets worse, she also joins in, and together they solve the mystery and in the process, their relationship blossoms.
In the context of Konoha High School, their rivalry could extend to popularity. Sasuke is the cool, brooding type that many students admire from afar. Sakura is popular among the girls for her intelligence and kindness. They both unconsciously compete for the most 'liked' status in school, which creates interesting situations and interactions between them.
In this fanfiction scenario, Naruto leaving Konoha for the High School DxD world could lead to some interesting character interactions. He might meet Issei and the others. His positive and determined attitude could inspire the characters in DxD. He could also introduce the concept of chakra to them, which could change the way battles are fought in that world.