There might be an original character created in the fanfiction that is really memorable. Maybe a young ninja who has a special ability that sets them apart from the others in the village. This character could have a strong sense of justice and be on a mission to change the violent ways of the Bloody Mist Village from within.
Well, Mei Terumi can be quite memorable too. As the Mizukage, she has to deal with the internal politics of the Bloody Mist Village while also being a powerful ninja herself. Her unique jutsu, like her lava - style and boil - style ninjutsu, make her a force to be reckoned with.
Zabuza Momochi is often a popular character in Naruto Bloody Mist fanfiction. His complex past and his skills as a ninja make him an interesting subject for writers. He has a lot of potential for character development in fan - made stories.
Zabuza is often a popular choice. His complex relationship with Haku and his powerful sword - using skills make him a fascinating character to explore in fanfiction.
There could be a fanfiction where the secrets of the Bloody Mist's past are slowly revealed through the eyes of a new generation of ninja. Maybe it focuses on a character who has to deal with the dark legacy of the village while also facing external threats. They could befriend Naruto and his friends, leading to a story of friendship and redemption in the context of the Bloody Mist's brutality.
One interesting plot could be the exploration of the unique ninja training methods in the Bloody Mist Village. For example, how the harsh environment and cut - throat competition shape the characters. Maybe there are stories about ninjas who have to overcome extreme challenges to survive and prove themselves.
Naruto is, of course, very memorable. His determination to protect the village against Pain is always a central and inspiring part of any such fanfiction.
Kakashi could also be a main character in certain 'naruto red mist fanfiction'. His experience and knowledge could be important in figuring out the mystery of the Red Mist. He might be mentoring the younger characters on how to handle the new threats and challenges that the Red Mist brings.
Haku is another beloved character in these fanfictions. His selfless loyalty to Zabuza and his gentle yet deadly nature are often explored further. Writers might create scenarios where Haku survives and has a different path in life, perhaps using his skills for more peaceful purposes within the Hidden Mist village.
It's hard to say for sure without reading it, but it's likely that Naruto himself would be one of the main characters, since it's a Naruto - related fanfiction. He might be at the center of the maelstrom, trying to stop the bloodshed.
The main characters would most likely start with Naruto. In this 'bloody flash' fanfiction, he might be in a situation where he has to fight against powerful and dangerous foes. Sasuke could also be a main character, especially if the story is about their rivalry taken to a more extreme level with lots of bloody battles. Other characters like Jiraiya could also be main characters if the plot involves Naruto's training or some kind of prophecy related to him that leads to these bloody and flash - like events.
I don't know for sure without reading it. But it could be Naruto himself. Maybe the story focuses on Naruto when he encounters someone or something with bloody fangs and he has to figure out how to handle it.