I'm not entirely sure without reading it thoroughly, but usually in such novels about a dangerous land, there are likely to be some brave explorers as main characters.
There could be a group of men, perhaps hunters or trappers, who find themselves in this land of white death. One of them might be the protagonist, a strong - willed individual who has a deep knowledge of the outdoors but is still challenged by the extreme conditions of this particular land. There may also be a sidekick - like character who provides support and some comic relief in the midst of all the danger and gloom.
Since it's a novel set in a desert land, the main characters might include a desert guide who is very familiar with the terrain. There could also be a foreigner who has come to the desert for some reason, like to study the unique flora and fauna or to search for something lost in the desert. Another possible main character could be a local tribesperson who has a deep connection to the land and its traditions and who gets involved with the other characters' stories.
Survival. The characters often face extreme conditions in the icy and harsh environment which makes survival a central theme.
I don't know as I haven't read it. There could be a hero figure, perhaps someone who is trying to fight against the 'white death' concept in the story.
The main characters might include the victim, whose past and relationships within the orphanage could be explored in flashbacks. There could be a rival or antagonist within the orphanage, someone who had a conflict with the victim. And of course, there would likely be some kind of helper or mentor figure, like an older orphan or a teacher - like person in the orphanage, who guides the main character through the process of dealing with the death and finding out the truth.
I don't have enough information to determine the main characters in this 'land of the living novel'.
Xiao Wu is also a main character. She has a special bond with Tang San and has her own unique abilities. There is also Dai Mubai, who is strong and has a certain charisma among the group. And Oscar, a food - type soul master with great potential.
I'm not sure specifically as I haven't read it in detail, but they could be settlers, explorers or natives of Beulah Land.
The main characters could be a diverse group. There could be a strong - willed female character who defies the norms of the land and becomes a hero in her own right. There might be a group of male characters, brothers perhaps, who fight together for a common cause. And there could also be an outcast - type character who has unique abilities and eventually becomes part of the hero group, bringing in a different perspective to the story.
Since I don't know the details of this novel, I can't say for sure. But typically, in a novel about land, there could be a farmer or a group of farmers as main characters. They would be the ones who interact with the land on a daily basis.
I don't know as I haven't read the 'Promised Land Novel'. But typically, in a novel about a journey to a promised land, there could be a strong - willed leader character who guides the group. There might also be a young and naive character who grows and learns throughout the journey.