Since it's about the rebirth of a demon god, the main character is likely the demon god. There might also be side characters like a powerful wizard who is either an ally or an adversary. And perhaps there's a young hero who initially opposes the demon god but later realizes there's more to the story. There could also be a mysterious old sage who has knowledge about the demon god's past and can influence his future.
I'm not familiar with the specific characters in 'the rebirth of the demon god novel'. However, in a story like this, apart from the demon god, there could be other powerful beings such as angels or other gods who oppose or help him. There may also be some mortals who get caught up in his story, either by chance or because they have some special connection to him.
I don't know for sure since I'm not familiar with a specific 'demon and god light novel'. But typically, there could be a brave human or demi - god as the protagonist, a powerful demon as the antagonist, and perhaps some wise god - like figures as mentors or allies.
In many such light novels, there could be an ancient god who has been sleeping for centuries and wakes up to find the world in chaos due to the actions of a group of demons. A young protagonist, who is destined to save the world, might be guided by the god and have to fight against the demons' leaders. There could also be side characters like other gods who have different opinions on how to deal with the demon problem and humans who are caught in the crossfire.
I'm not sure exactly who the main characters are without reading the novel. But there's likely to be the demon god himself as a main character. There might also be a mentor figure who helps him on his journey, or a rival who constantly challenges him.
The main character is usually the central focus, often having some sort of connection to the demon god. But without having read it thoroughly, I can't name all the main characters specifically.
The main character is Nie Li. He is the central figure throughout the Tales of Demon and God series, including likely in chapter 479. His actions and decisions drive the story forward.
I'm not entirely sure as I haven't read the whole 'Descent of Demon God' light novel. But usually, there would be a character related to the demon god, perhaps the demon god itself or a reincarnation of it. There would also likely be a hero - type character who opposes the demon god's influence.
The central figure is the Heavenly Demon who has been reborn. Alongside him, there may be mentors or elders who play important roles in his growth. Then there are antagonists, probably powerful figures from other factions who oppose the Heavenly Demon. And there could be some female characters as well, perhaps love interests or comrades who fight alongside the main character.
There is also a female character who plays an important role. She is smart and has her own unique abilities. She often helps the main character in various situations, and together they face many challenges in the world full of demons and gods.
The main themes include transformation. The demon god is reborn, so it goes through a huge transformation in terms of character and abilities. Also, there's the theme of fate. The story might explore whether the demon god can change its pre - determined fate through rebirth. And of course, there's the theme of good vs. evil as the demon god's nature is often ambiguous.