Unfortunately, not having delved into this particular light novel, I can't name the main characters. However, in many light novels of this genre, there are often protagonists who are either special humans or powerful non - human entities. In the case of this novel, given the title, there's likely a main character who has some sort of connection to the maou (demon lord). There might also be side characters who play important roles in the story, such as friends, allies, or antagonists who oppose the main character's goals in relation to the maou and the keiyakusha (agreements).
Another main character could be Maria Naruse. These characters interact with each other in various ways. Their different personalities, whether it's Basara's determination or Mio's mysterious nature, create interesting dynamics within the story of the light novels.
I'm not entirely sure as I haven't read it in full. But generally, light novels often involve unique storylines. It might be about a world with magic, unique characters, and their adventures.
Well, the art style, if there are illustrations in the light novels, might be a feature. It could be detailed and help bring the characters and the world to life. Also, the pacing of the story is important. It usually has a good rhythm that builds up the tension and excitement gradually.
Since it's a side - story light novel of 'shinmai maou no keiyakusha', it could be a collection of stories that add more flavor to the overall universe. It might show different perspectives of the story, such as the point of view of a minor character. It could also include some special events or scenarios that are unique to this side - story collection, which can enhance the understanding and enjoyment of the main series.
Maria Naruse is also among the main characters. She plays an important role in the group dynamics. Her personality and abilities contribute to the overall story development. For example, she often helps Basara and Mio in their adventures and in dealing with various threats.
The maou is likely one of the main characters. However, without having read it in great detail, there are probably other important characters like the maou's allies or servants who play significant roles in the story.
You can try looking for it in specialized Japanese light novel stores, either in physical form if you're in Japan or some international stores that import Japanese light novels.
I'm not entirely sure without reading it thoroughly, but likely there is a Maou character as the title implies.
I'm not entirely sure as I haven't read it fully. But typically in such light novels, there would be a main character who is likely to be the shinmai maou or someone closely related to that concept.
Since I don't have detailed knowledge about 'shinmai maou testament visual novel', we can assume that there are likely main characters who are central to the plot. They could be characters with special abilities or those who are in a unique position within the story's world. Maybe there are male and female leads who have their own story arcs and relationships with other characters.