Well, the Naruto characters in a Highschool of the Dead - Rei fanfiction would have a range of reactions. The more hot - headed ones like Rock Lee would charge into battle with the zombies, showing off his taijutsu skills. However, the more diplomatic characters like Kakashi would try to establish order among the survivors, which would include Rei. They would also be interested in learning about Rei's world and how she has survived so far. They might even try to find a way to use the chakra system to combat the zombie plague, seeing it as just another form of evil to be defeated.
Some Naruto characters would likely be very confident in a Highschool of the Dead - Rei fanfiction setting. For example, Naruto himself would probably jump right into action against the zombies. He'd see it as another challenge to overcome and would use his Rasengan or other jutsus without hesitation. Sasuke, on the other hand, would be more calculating. He'd analyze the situation of the zombie apocalypse and the role of Rei and others before making a move.
In a Naruto and Highschool of the Dead fanfiction, Rei could have an interesting role. Maybe she could possess some ninja - like skills similar to those in the Naruto universe. For example, she might be able to use chakra in a way that is unique to her character, perhaps using it to enhance her physical abilities during the zombie apocalypse that is central to Highschool of the Dead. This would make her a more formidable fighter and could lead to some really cool action scenes in the fanfiction.
One great Takashi x Rei fanfic could be 'A New Beginning'. It shows how Takashi and Rei's relationship evolves in the post - apocalyptic world. They face many challenges together and their bond strengthens through shared experiences.
Another theme is the growth of their relationship. It might start as a simple friendship or a reluctant alliance, but as they face challenges together, it evolves into something deeper. There could be moments of jealousy or misunderstandings as well, which are common in relationships.
Naruto would probably be the first to jump into action. He'd be shouting about not giving up and trying to protect everyone. He might see the zombies as just another type of enemy to defeat. Sasuke, on the other hand, would be more cautious and calculating, looking for ways to use the situation to his advantage. Sakura would be using her medical skills to help the injured, while also fighting off zombies when necessary.
Perhaps a plot where Takashi and Rei get separated from the rest of the group. They have to find their way back while also dealing with their own feelings for each other. Along the way, they discover new things about themselves and their relationship, like Takashi learning more about Rei's past and why she's so strong - willed.
Naruto's experience in dealing with tough opponents in his own world would help him in the zombie - filled Highschool of the Dead. He would be able to quickly analyze the situation, figure out the weaknesses of the zombies, and come up with effective plans. His friendship - first approach might also lead to some interesting relationships with the other characters in this new and dangerous world.
Obviously, Naruto would be one of the main characters. His determination and never - give - up attitude would be very useful in a zombie - filled high school. Sakura could also be a main character, using her medical ninjutsu to try and find a cure for the zombie virus. And Sasuke, with his powerful combat skills, would be great for fighting off the zombies.
Sakura would be devastated. She has always had deep feelings for Naruto, whether it was friendship or something more. She would probably throw herself into her medical work even more, trying to find a way to bring him back, even if it was impossible. Shikamaru, being one of Naruto's friends, would be solemn. He might use his intelligence to figure out what really happened to Naruto, and he would be the one to come up with a plan to deal with the aftermath.
For Naruto, in high - school he can develop his academic skills. He was never really good at schoolwork in the original series, but in this fanfiction, he could have a teacher who really believes in him and helps him improve. This would not only make him more well - rounded but also give him a new sense of pride. Sakura can develop her emotional intelligence. High - school is full of emotional situations like crushes and friendship dramas. Sakura can learn to understand and handle her own emotions better, as well as be more empathetic towards Naruto and other students when they are going through tough times.
Most likely Naruto himself would be one of the main characters. He's the titular character of Naruto. And probably some of his close friends like Sasuke and Sakura. From High School of the Dead, it could be Takashi Komuro.