The title suggests that the king of death is a main character. There might also be other characters associated with the dark palace. Maybe there are guards or servants in the palace who play important roles in the story. There could also be characters from the outside who try to interact with the king of death in the palace.
Since I haven't read it, I can't say for sure. But likely the king of death is one of the main characters.
I'm not sure specifically as I haven't read it. But generally, it might be about a powerful being, the 'king of death', in a dark palace setting. It could involve battles, power struggles, or a dark and mysterious plot.
I'm not entirely sure as it depends on the specific story of the light novel. But usually, there is the Dark King himself as the central character. There may also be sidekicks, enemies, and characters who play important roles in his journey, like a mentor or a love interest.
The main characters may include the dark king, who is likely at the center of the story. There could also be his advisers, who might be helping him rule or trying to manipulate him. Additionally, there could be a group of rebels or heroes who oppose the dark king's rule. These characters would add conflict and drive the plot forward as they try to either overthrow the king or change his ways.
Since I don't know the exact 'king of the palace story', it's hard to say for sure. But most likely, the king himself is a main character. There could also be his queen, if there is one in the story. And perhaps his advisers, servants, and noblemen who play important roles in the events that take place in the palace.
There is also a female character, perhaps a sorceress, who often aids the dark king in his quests. She has her own set of powers and motives that add depth to the story.
I don't know for sure since I haven't read it. But I assume there's the dark king, and then there must be a character who is bound to him. There might also be other characters like advisors to the dark king or friends or family of the character who is bound.
Since I don't know the actual story, it's difficult to say. But it could be the character with the 'dark craving' and the 'dark king' himself.
The obvious main character would be the undead king himself. He is likely to be at the center of the story. There could be other important characters such as his advisers, if he has any. They might be undead as well or some other dark entities. And there may be characters from outside the palace who try to enter the palace of darkness for various reasons, like treasure hunters or adventurers, and they could also be main characters as their actions might drive the plot forward.
Obviously, the undead king is one of the main characters. He is central to the story as the title suggests.
I don't know this story specifically, but it could have the king as a main character. There might also be his queen, princes or princesses, and perhaps important advisors or nobles in the palace.