Sasuke would probably also be a main character. His rivalry with Naruto could play out in interesting ways in this new setting. They might have to put aside their differences to fight the common enemy, which is the hordes of zombies. Sakura could also be there, using her medical skills to help the injured.
Obviously Naruto would be one of the main characters. He's the protagonist of the Naruto series, so he'd likely be at the center of the action in this fanfiction too. He'd be using his ninja abilities to combat the threats in the high - school - turned - zombie - land.
For a 'Naruto x Highschool of the Dead' fanfiction, Naruto is a must - have main character. His presence is what makes the crossover unique. Among the 'Highschool of the Dead' characters, Saya Takagi would be an important main character. She's intelligent and resourceful. Naruto and Saya could make a great team. Naruto with his brute force and Saya with her brains. Then there's also Kohta Hirano, the gun - loving otaku from 'Highschool of the Dead'. He could be in awe of Naruto's powers and they could collaborate in battles against the zombies. Naruto could learn about modern firearms from Kohta, while Kohta could learn some ninja tricks from Naruto.
Obviously Naruto would be one of the main characters as it's in the title that he's 'broken'. And since Akatsuki is dead, they might still have an impact on the story through flashbacks or the consequences of their actions. Other characters like Sasuke could also be main characters as he's often closely related to Naruto's story.
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.
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.
It could be about Naruto characters in a high - school - like setting during a zombie apocalypse. Maybe Naruto uses his ninja skills to fight off the zombies and protect his friends. For example, his Shadow Clone Jutsu could be used to distract the zombies while he rescues someone.
Most likely Naruto himself would be one of the main characters. Since it's a Naruto - based fanfic, he would bring his ninja skills and determination to the high - school - zombie scenario.
If we consider the Sharingan ability from Naruto, a character like Sasuke could use it to predict the movements of the zombies more accurately. This could be combined with the strategic thinking of the Highschool of the Dead characters. They could plan out how to best use Sasuke's ability to avoid large groups of zombies or to lead them into traps. The Highschool of the Dead characters might also learn some basic ninja stealth techniques from the Naruto characters, allowing them to move more quietly through the school corridors filled with zombies.
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.
Kakashi could be another important character. As a mentor figure, he might be guiding the younger generation through the difficult times after Naruto's death, using his experience and wisdom to keep the village stable.
It could be Naruto himself. Since he has such a complex backstory and has faced a lot of hardships, it's likely that he could be a main character in a story about broken souls.