Not having read the nihonkoku shoukan web novel makes it hard to say for sure who the main characters are. But if it follows common tropes in this kind of story, there could be a protagonist who is an ordinary person thrust into an extraordinary situation due to the summoning. There might also be antagonists who oppose the summoned entity or try to use the summoning for their own evil purposes. And there could be supporting characters like friends or family members of the protagonist who are affected by the events of the summoning.
Since I haven't read the 'nihonkoku shoukan light novel', I can't say for sure who the main characters are.
I'm not entirely sure as I haven't read it in detail. But generally, it might be about some sort of summoning in the context of a Japanese - themed story. Maybe it involves characters being summoned to a particular place in a fictional Japanese world.
I'm not entirely sure specifically what 'nihonkoku shoukan light novel' is about without having read it in detail. It could potentially be about a fictional world related to Japan, perhaps with elements of summoning or some sort of unique fantasy setting.
In 'isekai maou to shoukan web novel', the main character is likely to be the maou who gets summoned. This character would have unique abilities and a personality that drives the story. There could also be side characters who either oppose or support the maou. For example, there might be a princess who initially fears the maou but later comes to understand and perhaps even help him. Or there could be other demon lords or powerful beings in the story's world that interact with the main maou character.
Not much is known. Maybe there's some kind of partnership or promotion, but details are scarce.
The English translation of 'Nihonkoku Shoukan' manga is decent. The language is clear and understandable for most readers.
The raw version of Nihonkoku Shoukan manga can vary in quality depending on the source. Sometimes it might have decent clarity, but at other times, it could have issues like blurriness or incomplete scans.
Overall, Nihonkoku Shoukan manga has some similarities with related genres, but it also brings fresh perspectives and plot developments. For example, it might share common themes but have a different take on character development and world-building.
Since there are many 'isekai maou to shoukan novel' out there, it's hard to name the exact main characters. However, in general, the protagonist who is summoned and turned into a maou is a key character. There could be side characters such as the local inhabitants of the isekai world. Some might be friendly and help the maou - protagonist, while others could be hostile. Maybe there's a female lead who has some sort of relationship with the maou, whether it's friendship, love, or rivalry.
I'm not entirely sure as I haven't read the exact novel. But based on the title, the main characters are likely to be the 'Maou' (a demon - like or very powerful character) and the'shoukan dorei' (the summoned slaves). There might also be other supporting characters like the ones who summoned the Maou or the people in the isekai world that the Maou and slaves interact with.