Obviously, Koro Sensei would be the central character. His unique appearance and abilities would add a lot of fun elements to the story. The students from Class 3 - E like Nagisa, Karma, and Kayano could also be main characters. They could interact with Koro Sensei in various ways related to the lemon theme, like using lemons in their assassination attempts in a very comical and harmless way.
The principal of the school could also be a character. He might be initially skeptical about all the lemon - related activities in the class but then gets involved in a funny way. Maybe he accidentally eats a super - sour lemon prepared by the students as a prank and his reaction could be a hilarious part of the story. Additionally, other teachers in the school could make appearances, perhaps getting roped into the lemon - inspired chaos that Koro Sensei and the students create.
A new character could be introduced, like a lemon - loving alien who visits the school. Koro Sensei and the students have to deal with this unexpected visitor. The alien could be fascinated by the lemons on Earth and wants to take them back to its planet. This leads to a series of comical and adventurous events as Koro Sensei tries to protect the lemons while also teaching the alien about the value of sharing and friendship.
Perhaps there could be a jealous teacher in the school where he starts working as a human. This teacher is threatened by Koro Sensei's popularity among students, even though he's now human. So, this teacher starts to spread rumors or create problems for him to get him fired.
Koro Sensei himself is of course a very popular character. Since the fanfiction is about his human form, people are interested in seeing how his unique personality traits translate into a human appearance. His intelligence, his sense of humor, and his caring nature towards his students are all aspects that are explored.
Obviously, Koro Sensei in his human form is a very popular character. He's the center of most of these fanfictions as people are intrigued by how he would act and look like as a human. His students also remain popular characters. Nagisa, for instance, might have different interactions with human Koro Sensei, perhaps being more curious about his human past.
Another plot could involve a lemon - growing competition among the students, and Koro Sensei serves as the judge. He gives out his unique rewards and punishments based on how well the students grow their lemons. Along the way, there are funny mishaps and heartwarming moments as the students learn about gardening and competition.
Obviously, Naruto himself would be one of the main characters as he is the sensei. His students could be a group of new genin. For instance, the children of his old friends like Boruto and Sarada could be among his students.
One possible aspect to analyze in this fanfic could be the character development of Koro - sensei. Since he lives in this fanfic, perhaps we see him further influencing the students in new ways. For example, he might be able to provide more long - term guidance and mentorship that was cut short in the original story.
Indeed, Koro Sensei passes away in the manga. This event is both emotional and crucial to the story's conclusion, leaving a lasting impression on readers.
They could start by having more conversations outside of work - related topics. This would allow them to bond on a personal level. For example, they could talk about their hobbies or past experiences. Karasuma might share his military training stories, and Koro - sensei could talk about his travels before coming to the school. As they get to know each other better, their relationship would develop into a more complex and interesting one.
Maybe in the 'koro sensei turns human fanfiction', he has to deal with his past as an assassin. As a human, he might have flashbacks of his former life and try to atone for his sins. He could start by teaching self - defense or martial arts to kids in a local community center. And he might also face danger from his former assassin comrades who don't like the idea of him becoming a 'good' human.