Since it's called 'Children of the Rune', the main characters are likely to be those who are directly associated with the runes. They could be individuals who have been chosen by the runes for some special purpose. Maybe there's a young boy who discovers he has the power to activate runes in a way no one else can, and a girl who can communicate with the spirits of the runes. These two, along with other characters who are also 'children of the rune' in different ways, could be the main characters, all with their own backstories and goals.
I don't know specifically as I haven't read the novel. But typically, the main characters in a light novel like this might be the 'children' mentioned in the title. They could be young heroes or heroines with unique personalities and abilities related to the runes.
The main characters in the 'Rune Troopers Light Novel' are likely to be the troopers themselves. There could be a character who is the outcast among them, having a different origin or power related to runes that the others don't fully understand at first. Another main character could be the strategist of the group, always coming up with plans to overcome the various challenges they face. And of course, there might be a character who is the heart of the group, keeping the morale high and the relationships among the troopers strong during their dangerous adventures.
In the 'Rune Soldier Light Novel', there might be a young and determined character who is the main focus. This character could be a novice in the world of runes at the start but gradually becomes more powerful. There may also be a mentor - like figure who guides the protagonist in understanding and using rune magic. Additionally, there could be antagonists who oppose the protagonist's growth or use of rune magic for their own nefarious purposes.
I'm not entirely sure as I haven't read it yet. But generally, a light novel often involves unique characters, a fictional world, and an interesting plot. It might be about characters who are related to runes in some way, perhaps they have powers or a special connection to these runes and their adventures in that context.
I'm not sure as I haven't read it, but they could be the children themselves who are the central focus of the story.
Since I don't know the exact 'Rune King Novel', I can't say for sure. But usually, there would be the Rune King himself as a main character. There might also be a mentor figure who helps him understand the runes.
Chakuro is one of the main characters. He is curious and often records the events and feelings of the people on the Mud Whale. Another important character is Lykos.
I'm not entirely sure about the main characters in the 'Rune King Thoor Graphic Novel' as it might be a relatively new or niche work. However, usually in a graphic novel with a name like that, the character named Thoor is likely to be a central figure, perhaps with some sort of power related to runes.
Thor is the main character, of course. As he transforms into the Rune King, his character goes through a major evolution. Odin also plays an important role, as his past actions and knowledge are often intertwined with Thor's journey. Loki, as always, is also there, causing his usual mischief and sometimes being an unexpected ally or foe.
There could be a customer who has a really complex medical condition that Rune is trying to help. This customer could be a main character as their story arc might be central to the plot. And there might be an assistant in the pharmacy who helps Rune out and has their own sub - plot going on.
The main characters are the Sky Children themselves. They are the ones who drive the story forward by exploring and spreading light.