I don't know specifically since I haven't played or studied this visual novel in depth. But usually in a story about oath - breaking, there could be the character who breaks the oath, someone who is affected by the broken oath, and perhaps a mentor - like figure who tries to guide the oath - breaker.
I don't know the exact main characters as I haven't read the 'oathbreaker novel'. But it's likely to have characters directly involved in the act of oath - breaking, like the oathbreaker themselves, and those who are affected by it, such as their friends, family or enemies.
I'm not entirely sure as I haven't fully explored it myself, but generally a visual novel is a form of interactive story. 'Oathbreaker' might be about a story where someone breaks an oath, perhaps in a fictional world filled with different characters and relationships.
The 'oathbreaker novel' may explore different aspects. It could be a story set in a fantasy realm where oaths are magically binding. The main character, an oathbreaker, might be shunned by society or hunted down. Or perhaps it's a story about a person who breaks an oath for a greater good, but still has to face the internal and external consequences. It could also look at how different cultures within the novel's world view oath - breaking, whether it's an unforgivable sin or a necessary evil in certain situations.
Since I don't have specific information about this '999 visual novel', I can't tell you exactly who the main characters are. But usually in a visual novel, there are protagonists who drive the story forward, and there might be supporting characters like friends, family members, or antagonists who create conflict.
I don't have enough information to determine who the main characters in '707 visual novel' are. It could have a diverse cast of characters such as a brave hero, a cunning villain, and some interesting side characters.
Since we don't know the details of '86 visual novel', we can't say for sure who the main characters are. They could be ordinary people living in a fictional world, or they could be heroes with special abilities. It all depends on the nature of the story which we don't know yet.
I have no specific information about the 'a3 visual novel' characters. However, in many visual novels, there are often diverse characters. There could be a young hero or heroine as the main character. Maybe there are some mysterious figures that are part of the 'a3' concept. They could be people with special abilities or knowledge that the main character has to interact with, either as allies or antagonists.
I'm sorry, but I don't have information about the main characters in 'Yamikumo Visual Novel'.
I don't know specifically as I haven't played it. But typically, there could be a protagonist who is central to the story.
I don't have enough information to determine the main characters. It could be a brave protagonist, perhaps a young person with a strong will to achieve deliverance. There might also be a mentor - like figure who guides the main character on their journey.