Not having read the novel, it's hard to say exactly who the main characters are. However, in a novel about 'villain days', the main character is likely a villain or a group of villains. They could be anything from a power - hungry dictator in a fantasy world to a conniving criminal mastermind in a more modern - day setting. There might also be other important characters such as the ones who try to stop the villain, like detectives or superheroes if it's in a genre that allows for such characters.
I don't know for sure as I haven't read the 'villain days novel'. But I would assume there would be at least one main villain character. There could also be characters who oppose the villain, like heroes or other characters caught in the middle of the villain's actions.
Since I don't have the details of this particular 'Caught by the Villain' novel, generally speaking, the main character is the one who is caught, let's call them the hero. The villain is another main character. There could be other important characters like a mentor figure who might have given the hero some skills or knowledge before they got caught, or a fellow captive who teams up with the hero to escape from the villain.
Since I haven't read it, I can't say for sure. But typically, there would be a protagonist who is the one aiming to kill the villains. There might also be sidekicks or allies that help the main character in their quest.
One of the main characters is Shintaro Kisaragi. He is a key figure in the story. Another important character is Ene, who has her own unique relationship with Shintaro. There are also characters like Kano, Kido, and Seto who play significant roles in the events of the novel.
I'm not sure as I haven't read it, but they could be kids from different backgrounds like a shy introvert, a popular kid, or a kid from a troubled family.
Well, in a 'last days novel', the main characters often represent different aspects of humanity. There could be a fearless leader type, someone who steps up to take charge and try to organize the survivors. Then there might be a more introverted character who is forced to come out of their shell to survive. And there could be a character with a mysterious past that holds the key to some important aspect of the story, like a secret knowledge that could potentially save everyone or at least give them a better chance in these last days.
I don't know the main characters in the '6 days graphic novel' since I have no information about it. It could be a hero on a quest, or a group of friends caught up in an adventure.
There's no way to know precisely without reading the '3 days light novel'. It might have a complex set of characters including an antagonist who creates obstacles for the main character(s) during those three days. There could also be some supporting characters like family members or mentors who play important roles in the development of the story.
I don't know as I haven't read it. Maybe it has a young traveler as a main character.
The main character is Sakamoto, of course. He's the ex - assassin. And there are other assassins who play important roles as well, like Shin. They interact with Sakamoto in various ways, either as opponents or sometimes as reluctant allies.
Since I haven't read the novel, I can't say for sure. But often in novels, there are protagonists who drive the story forward, and there may be antagonists who create conflict.