In a general 'Seventh Man Story', the main characters would likely include the titular seventh man. There could be a leader in the group he is part of, who might initially underestimate or misunderstand him. There may also be a sidekick or a confidant to the seventh man, someone he trusts and shares his secrets with. Additionally, there could be an antagonist, someone who is against the seventh man or the group as a whole, trying to disrupt their plans or harm them.
The main characters in the 'Seventh Man Story' are not clear without more details. But it's possible that aside from the seventh man, there are other members of a community or a team. There could be an older, wiser character who serves as a mentor to the seventh man, guiding him through difficult situations. There might also be a young and naive character who looks up to the seventh man and is influenced by his actions. And of course, there could be characters who represent different values or beliefs within the story's world, which creates conflict and drives the story forward.
Since we don't have the full details of the story, it's hard to say exactly who the main characters are. But we can assume that the seventh man is a main character. There may also be others who are related to him in some way, like his friends or foes.
The most prominent character is clearly the seventh man. He is the one through whose eyes we see the events unfold. And of course, there's his friend who unfortunately died in the wave. Without his friend, the whole story of the seventh man's trauma and his journey to overcome it wouldn't exist.
The main character is the seventh man. His friend K was also an important character. The seventh man is the one who tells the story and has been deeply affected by the events involving K and the wave.
The twenty - seventh man is the most prominent character we know of from the title. But we can't be sure who else is important without reading the story. It could be that there are family members of the twenty - seventh man that play a role, or comrades in a struggle. There could also be some sort of bureaucratic or ruling figures that hold power over the twenty - seventh man and shape his circumstances.
In the 'the seventh day story', the main characters might be a group of friends who have a pact that every seventh day they do something together. Or it could be a single protagonist who is on a quest and the seventh day is crucial in that quest. For example, if it's a fantasy story, the hero might face a big challenge on the seventh day.
Since I don't know the exact Seventh Light Novel, in general, there could be a hero or heroine with some special abilities or qualities. There may be a sidekick who provides comic relief or helps the main character in tough situations. And there could be an antagonist who creates obstacles for the main character's goals.
The main theme might be the power of memory. The seventh man was haunted by the memory of the tragic event. His memory of that day, the wave, and his friend's death influenced his entire life. It affected his relationships, his mental state, and his view of the world. The story explores how memories can shape who we are and how we live our lives.
I don't know specifically without reading it again. But in Decameron stories, there are usually characters like noblemen, ladies, servants, etc. Maybe there is a young hero and a beautiful heroine in this story.
I'm not sure as I haven't read it, but it's likely that the seventh son is one of the main characters. There might also be his parents, siblings or some kind of mentor figure who helps him understand his role as the seventh son.
Then there is an old mentor - like character. He has vast knowledge and experience, and he plays a crucial role in guiding the Seventh Godking in his journey, especially in understanding the power he possesses and how to use it effectively.