Without having read the 'black sun lemon fanfic', it's impossible to accurately name the main characters. It could be a single protagonist on a journey in this world of the black sun, with other supporting characters that come and go. The 'lemon' aspect might suggest that there could be a romantic lead or two. It might also be that the main characters are part of a community living under the black sun, and their relationships and interactions, which could involve some romantic elements as hinted by 'lemon', form the core of the story. But again, this is all just guesswork without actually reading the fanfic.
I don't know as I haven't read it.
Often, the main characters are trainers. They could be new trainers starting their journey in the Pokemon world of Black and White. Maybe a young and ambitious trainer who is eager to collect all the badges and become a Pokemon master.
Well, 'black sun' might be a symbol or a key element in a particular fictional universe that the fanfic is based on. Maybe it has some sort of special power or significance. The 'lemon' part could mean that there are some tender or romantic moments in the story. However, without reading the actual fanfic, it's really hard to say precisely what it's about. It could be about characters' adventures in a world where the black sun has an impact on their relationships, which are filled with some sweet and perhaps a bit more passionate moments.
As I'm not acquainted with this novel, it's difficult to name the main characters. However, in a story about a 'black sun twining', we can assume there might be a central character, perhaps a young and curious person, who stumbles upon the mystery of the black sun. There could be other supporting characters like an old sage who holds the secrets of the black sun's significance, and a group of skeptics who don't believe in the power or existence of the black sun and constantly oppose the main character's journey to uncover the truth.
Since I haven't read the novel, I can't say for sure. But it might have a protagonist who is drawn to the abbey for some reason, like a curious adventurer or a scholar. There could also be an antagonist who wants to use the secrets of the 'black sun' for their own dark purposes.
I'm not sure specifically who the main characters are in 'chasing the sun fanfic' as it could be written in many different ways by different authors. It could be a young hero on a solo adventure to chase the sun. Or it could be a group of friends who decide to embark on this journey together.
I'm not sure exactly as I haven't read it, but likely there are characters who are brave and curious enough to be involved with the mystery of the Black Sun.
I don't know as I haven't read it. But they could be original characters created by the fanfic writer or characters borrowed from an existing franchise and given a new story related to chasing the sun.
Then there's a wise old wizard called Merlin. He guides Alex with his vast knowledge and magic skills. There is also a female character, Lily, who is strong - willed and has her own special abilities. She often comes up with creative solutions when they are in trouble.
Obviously, Himawari Lemon is one of the main characters. There could also be her family members who play important roles, like her parents who support her dreams.