Naruto is a likely candidate. His never - give - up attitude and his strong will would make him a great hero in the face of the Black Death. He would fight not only the disease but also the panic and despair that come with it.
Another possibility is Kakashi. He is very intelligent and experienced. He could lead the ninja in strategizing how to deal with the spread of the Black Death. He might also discover some hidden secrets or old techniques that could be the key to stopping the disease.
It could be an unknown ninja who has been researching dark and forbidden arts. This ninja accidentally unleashes the Black Death - like plague while trying to gain ultimate power.
I'm not sure specifically as there could be many different interpretations in a fanfiction with this title. It might combine elements of the Naruto universe with a concept inspired by the Black Death, perhaps having the characters face a plague - like situation in the ninja world.
Sasuke could also be a main character. His relationship with Naruto, whether it's a friendly rivalry or a full - on partnership in this fanfiction, would add depth to the story. And of course, Sakura might be there too, perhaps with her medical ninja skills playing a crucial role in some of the adventures.
One possible plotline could be how the characters in Naruto deal with the sudden outbreak of a Black Death - like disease. Maybe Naruto himself tries to find a cure using his shadow clones to search far and wide.
You can try looking on fanfiction websites such as FanFiction.net or Archive of Our Own (AO3). They have a large collection of Naruto fanfictions and there's a chance you'll find 'naruto the black death fanfiction' there.
In this fanfiction, perhaps the Black Death returns in a form that is related to some dark jutsu gone wrong. It might start in a small village and then spread rapidly. The story could focus on Naruto and his friends trying to find a cure. They might have to travel to different places, meet new characters, and face many challenges along the way. For example, they could encounter groups who think the disease is a punishment from the gods and oppose their attempts to stop it.
Well, Naruto is the central figure for sure. And there could be an Asari female character who becomes Naruto's ally or love interest. There may also be some other Asari characters who are initially skeptical of Naruto but later come to respect him as he proves himself in their world.
Since I haven't read it, it's hard to say for sure. But likely Naruto would be one of the main characters as it's a Naruto - based fanfiction. There could also be other well - known characters like Sasuke, Sakura, or Kakashi. And of course, there might be new characters introduced specifically for this fanfiction, like a dragon - tamer or someone with a special connection to the death dragon.
There could also be characters like Sasuke. He might be involved in the story as Naruto's friend or rival. Maybe he has his own encounters with the Death Reaper or gets affected by Naruto's actions regarding the Reaper.
Since I haven't read it, it's hard to say for sure. But most likely Naruto would be one of the main characters. He is the protagonist of the original Naruto series, so it would make sense for him to play a major role in the fanfiction as well.