I'm not sure specifically as it depends on the particular fanfiction. It could be characters from the original source material that the fanfiction is based on, but without reading it, it's hard to say.
It's also possible that the author of the fanfiction creates new characters in addition to using existing ones. These new characters could play important roles in the 'painting it black' concept, perhaps being the ones causing the 'blackening' or being affected by it in unique ways.
One interesting concept could be exploring different interpretations of the color black in the context of the fanfiction. It might symbolize mystery, darkness, or a sense of the unknown.
Well, obviously the sisters are the main characters. But without more context about this specific fanfiction, it's hard to say exactly who they are in terms of their personalities and traits.
In some fanfictions, there could be a mechanic or engineer who is an important part of the Black Squadron's operations. This person keeps the ships in top - notch condition and might have a special bond with the pilots, providing them with technical support and advice during missions.
Obviously, the black princess herself is a main character. She's likely to be strong - willed and have unique abilities.
It could be a young protagonist who is brave but also has a lot to learn. This character might be the central figure in the story.
Well, in addition to the black phoenix, there could be a group of adventurers. They might be on a quest related to the black phoenix, perhaps to learn its secrets or to stop it if it's on a destructive path. There could also be a sorceress who has a special bond with the black phoenix, either as a friend or an enemy. The fanfiction might also introduce a young hero who looks up to the black phoenix and tries to follow in its footsteps, facing many challenges along the way.
I don't know as I haven't read it. It could be a young protagonist who discovers the black apple.
Well, it could be a group of adventurers. For example, there might be a brave warrior who is not afraid to face the challenges of the black snowstorm head - on. Then there could be a wise mage who uses their magic to try and understand the nature of the storm.
Well, obviously the Black Healer is one of the main characters. They are the center of the story with their healing abilities.
Since I don't know the specific 'assassin of black fanfiction', I can't say for sure. But it might have an assassin as the main character, perhaps with some side characters like the targets, allies, or rivals.