There's a group of villains in the 'Villains Rising Light Novel'. One of the main ones is a woman named Lilith. She is cunning and uses her intelligence to outwit her enemies. Another is a hulking brute named Brutus who uses his physical strength to cause chaos. They all have different motives for their villainy which makes for an interesting dynamic.
Sosuke Aizen from 'Bleach' is a very competent villain. He is extremely intelligent and manipulative. He planned his actions for a long time, deceiving many powerful characters in the Soul Society. His combat skills are also remarkable, which makes him a truly competent and fearsome villain in the light novel and anime.
I'm not sure exactly as I haven't read it. But generally, it might be about villains who for some reason find themselves in a position where they have to save the world instead of their usual villainous deeds. Maybe there's a greater threat that even they can't ignore.
One of the main themes could be redemption. Even though they are villains, they might have a chance at changing their fates. Another theme might be the struggle against one's pre - ordained destiny. The villains in the novel may try to break free from the idea that they are meant to die.
Since I haven't read it, I can't say for sure. But I would expect there to be some well - known villains in the story. Maybe a powerful sorcerer who has been causing chaos before but now has to use his powers for good.
Often, they are portrayed as power - hungry. For example, in 'Overlord', the villainous organization led by the protagonist (from the perspective of the world's inhabitants) wants to expand its power and influence over the game world. They are also shown as manipulative. In 'The Rising of the Shield Hero', the group that frames the hero is manipulative, using false accusations to achieve their goals.
The main villain, of course. Their journey towards their seemingly inevitable death is always fascinating. Also, any character who tries to defy the fate of the villains in the story. They add an element of hope and unpredictability.
Well, generally it's about a character who is being raised by villains. There are likely all sorts of interesting dynamics, like the main character having to adapt to the villains' ways, or perhaps trying to find a way to change them from within. It might also involve the character learning skills or values that are unique to the villainous environment they're in.
It could be the classic villains from the original series like All For One. He might be interested in baby Deku's potential quirk. Another could be Shigaraki, who might see baby Deku as either a threat or an opportunity to disrupt the hero world in a new way.
I'm not sure specifically as I haven't read the exact novel. But usually, the main villains are those who oppose the protagonist the most. They are often the ones causing the most chaos and problems in the story world.