I don't know as I haven't read this light novel.
Since I'm not acquainted with this light novel, it's difficult to say who the main characters are. They could be ordinary people thrust into extraordinary situations, or they might be individuals with special powers or abilities. Maybe there's a young protagonist on a quest to discover something important, or a group of characters working together towards a common goal.
Not having read 'shiro no koukoku monogatari light novel', it's impossible to accurately name the main characters. But typically in a light novel, you might expect to find a diverse cast. There could be a brave leader - someone who is intelligent and decisive. There might also be a sidekick character, perhaps with a sense of humor to lighten the mood. And then there could be an antagonist or a group of antagonists who oppose the main characters' goals.
I'm sorry, I haven't read it yet so I'm not sure what it's about specifically.
One of the main themes could be adventure. Since it's a light novel, it might involve characters going on various quests and exploring new places.
Since I don't have a full knowledge of 'mismarca koukoku monogatari light novel', it could potentially be about the history, culture, and the daily lives of the people in the Mismarca setting. It may also revolve around a hero's journey to overcome challenges, whether they are physical battles or internal struggles. Maybe there are magic or special abilities involved too.
Araragi Koyomi is one of the main characters. He is a high school student with a complex personality. Another important character is Senjougahara Hitagi, a girl with her own secrets and a strong - willed nature.
You can try looking for it in specialized bookstores that carry a wide range of light novels. Some big - name book chains might also have it.
I'm not familiar with the exact characters in 'koyomi monogatari light novel'. However, based on common light novel tropes, there could be a female lead who has a complex relationship with Koyomi. Maybe there's an older mentor - like figure who guides Koyomi through difficult situations. And of course, there could be some antagonists who oppose Koyomi's goals or values.
Since I don't have first - hand knowledge of the 'isekai no seikishi monogatari light novel', it's hard to say exactly who the main characters are. However, based on the genre, there could be a young male or female protagonist who is the key figure. They may encounter a group of diverse companions, such as a strong - willed warrior, a clever thief - like character, and a gentle healer. These characters would then accompany the protagonist on their adventures in the isekai world.
Without having read the 'orc eiyuu monogatari light novel', it's hard to say for sure. However, based on the title, the central character is surely an orc hero. There might be a female character who serves as a love interest or a strong ally. There could be a group of friends or followers who believe in the orc's cause and support him. And perhaps there are some elder orc characters who hold the wisdom and traditions of the orc tribe and guide the hero on his journey.
One similar light novel could be 'Sword Art Online'. It also has a complex fictional world and engaging characters. The story is set in a virtual world where the characters face various challenges.
The main character, Araragi Koyomi, is what you can call a typical high school boy with an atypical life due to his encounters with the supernatural. Hitagi Senjougahara, his girlfriend, is a character full of contradictions. She can be both cruel and loving. Oshino Meme, on the other hand, is like a mentor figure. He has a vast knowledge of the supernatural world and guides Araragi through many difficult situations. And there are many other characters like Nadeko Sengoku who add to the rich tapestry of the story.