I don't know for sure as I haven't read it, but likely there is a character who is the devil's ally. There might also be the devil itself as a main character. Maybe there's a mentor - like figure who tries to stop the ally from getting too involved with the devil.
I'm not exactly sure as I haven't read it. But generally, in a light novel about a devil's ally, it might involve a character who forms an alliance with a devil for various reasons, perhaps power, revenge or to save someone. It could be set in a fantasy world full of magic and different races.
Typically, in a light novel like 'Beseech the Devil', there might be a central protagonist who is likely the one to have the most interaction with the devil - like element in the story. There could also be side characters such as friends or mentors who help or hinder the protagonist's journey. Maybe there is an antagonist who is either directly related to the devil or has a similar malevolent nature and is trying to stop the protagonist from achieving their goals.
I'm not entirely sure as I haven't read it thoroughly, but usually there is a central protagonist who drives the story forward. There may also be side characters like mentors, allies, and antagonists.
Satan, also known as Maou Sadao in the human world, is a central figure. He's trying to take over the world but gets sidetracked by human life. Emi Yusa, or Emilia Justina in her true form, is a strong female character who opposes Satan. Alciel, whose real name is Shiro Ashiya, is always by Satan's side, and they have a lot of comical exchanges as they navigate the human world together.
The main characters would likely include the female lead who is married to the devil's son. She's probably the one through whose perspective we see the story unfold. The devil's son is another key character. He might have his own set of characteristics that are both devil - like and yet have some redeeming qualities. There could also be a mentor - like figure in the story, perhaps an old wizard or a wise woman who tries to guide the female lead in her new life.
The main characters are likely to be Dante and Nero. Dante is a well - known demon hunter with his unique style. Nero is also a powerful fighter in this universe.
Dante is one of the main characters. He is a powerful demon hunter with a cool and confident personality. Another important character is Vergil, Dante's brother, who has his own complex motives and powers.
Dante is one of the main characters. He is the protagonist, a half - demon, half - human devil hunter. He wields his signature sword Rebellion and his guns Ebony and Ivory.
Since I haven't read it, I can't say for sure. But it's likely that the devil is one of the main characters, given the title.
There are several main characters. One of them is typically a protagonist who is thrown into the chaotic digital - devil world and has to find a way to survive. Another might be a mentor - like figure who has some knowledge about the world and its rules. There could also be an antagonist who is seeking power and is willing to do anything to get it.