Since I'm not familiar with the '304th study room fanfic', I can't accurately name the main characters. However, considering the setting is a study room, the main characters could be individuals with different personalities and study habits. There might be a diligent and organized student who is always on top of their work, a laid - back student who is more interested in making friends in the study room, and a rebellious student who challenges the traditional study norms in the study room. These are just some possible character archetypes that might be found in such a fanfic.
I'm not sure specifically what the '304th study room fanfic' is about as I haven't read it. It could be a fan - created story set in a study room. Maybe it involves the characters' experiences, relationships, or adventures within that study room setting.
There might be a pirate captain as one of the main characters. This character could be both a typical pirate, rough and ready for adventure, but also be involved in the mystery that the 'A Study in Scarlet' aspect brings. They could be a bit of an enigma, with a backstory that ties into the overall mystery of the fanfic.
Since I haven't read it, it's hard to say. But it could be the main characters from the 'Twilight' series like Bella, Edward, and Jacob. They might be in the quiet room for various reasons related to their relationships or personal growth.
The main characters could be a team of young Huntsmen and Huntresses who are sent to investigate the 5th kingdom. They might be a mix of established RWBY characters and new ones. For instance, a new character could be a mysterious figure from the fifth kingdom who has unique powers and a complex backstory that ties into the overall mystery of the kingdom. Maybe there's also an older mentor - like figure who has some knowledge about the fifth kingdom and guides the younger characters through their adventures there.
Well, obviously the 4th prince himself is a main character. He is likely to be complex, with his own ambitions, fears, and desires. There might also be his loyal servants or advisors who play important roles, helping him in his quests or political maneuvers.
The main characters are, of course, the 11th Doctor and Rose. The 11th Doctor is known for his energetic and somewhat eccentric personality. He has his signature bow tie and fez. Rose, on the other hand, is a strong - willed and adventurous character. She has her own set of skills and experiences from her previous travels with the Doctor.
I don't know for sure without reading it. But if it's about the 78th class, it might include the typical characters associated with that class in the original work. Maybe the leaders or the more prominent students within that class could be the main characters.
Obviously Naruto would still be one of the main characters. He played a huge part in the Fourth War and his influence would still be felt strongly in the post - war world. Sasuke would also be a main character as he was a key figure in the war as well. And Sakura, who has grown into a strong kunoichi, would also be important in the story.
I'm not sure as I haven't read it, but surely the 15th hunter chairman is one of the main characters. And since it's an 'oc fanfic', there are probably original characters created by the author that are also main characters. They could be friends, rivals, or subordinates of the chairman.
I don't know for sure as I haven't read it. But it could be original characters created by the fanfiction author, or it might re - imagine existing characters from the source material it's based on in a new context related to blood.