I'm sorry, I don't have information about the specific main characters in this light novel. But usually in a story related to military affairs like this, there would be the protagonist like Baltzar, and probably his comrades or superiors.
Without having read the 'gunka no baltzar light novel', we can only make assumptions. Baltzar is surely a main character. There could be other important characters around him. Maybe there's a wise general who guides Baltzar, or a cunning enemy who constantly tries to thwart his plans. There might also be friends or love interests that play important roles in Baltzar's journey and development in the story.
Since it's a light novel, it might have a richly developed fictional world. In the case of 'gunka no baltzar', it could be that Baltzar is a key figure in a large - scale military campaign. The story might explore his relationships with comrades, his rise through the ranks, and his personal growth. It could also involve elements of magic or advanced technology, depending on the genre conventions of this particular light novel.
The main characters include Shin, who has seen a great deal of combat among the 86. There's also Lena, who plays a crucial role in the story as she attempts to change the unfair situation faced by the 86. And then there are other members of the 86 unit, each with their own personalities and backstories that contribute to the overall narrative.
One of the main characters is Shin. He is a skilled pilot among the 86.
Since we don't know the exact 'into the light novel', it's difficult to say for sure. However, in many light novels, common main characters include a hero or heroine on a quest. This could be a high - school student with a special ability in a modern - day - meets - fantasy setting. Or it could be a warrior from a medieval - like world. There might also be sidekicks like a talking animal or a loyal friend who accompanies the main character on their journey in the story of the light novel.
Since I haven't had the chance to read 'Scion of Light Light Novel', it's hard to say exactly. However, it's likely that the main character is the scion of light. There could also be an antagonist, perhaps someone who represents the opposite of light, like a dark sorcerer or a power - hungry villain who wants to extinguish the light. And there might be some side characters, like friends or allies of the scion who accompany them on their journey, offering support and different skills.
Ginko is a main character. He is a Mushishi, traveling around to deal with various incidents related to Mushishi and humans.
It depends on the specific 'deathmarch light novel'. Usually, there is a central protagonist who is often the focus of the story. This character might be a young person with some special abilities or potential. There could also be side characters like a wise old mentor who guides the protagonist, or a group of friends or allies who join the protagonist on their journey.
Since I don't know the specific content of Hikari Light Novel, I can't be sure. But it's likely that Hikari is one of the main characters. There might also be a mentor - like figure who guides Hikari on his or her journey.
I don't know the main characters in 'oratoria light novel' since I haven't read it.
I don't know the main characters in 'reia light novel' as there's not enough information provided. It could be Reia herself and maybe a group of friends or companions.