Since I don't know the specific 'poisoning the world novel', I can't say for sure. But generally, there might be a protagonist who is either trying to stop the world from being poisoned or is unfortunately caught up in the process. There could also be an antagonist, the one causing the 'poisoning'.
Without reading the 'poisoning the world novel', it's hard to name the exact main characters. However, in a story like this, we might expect a hero figure. This hero could be an ordinary person who is thrust into extraordinary circumstances and has to find a way to save the world from being 'poisoned'. There might also be a mentor - like character who guides the hero, and on the other side, a powerful and devious villain who is hell - bent on achieving the 'poisoning' of the world.
In this 'poisoning the world novel', there could be a group of characters. There might be a scientist or a scholar who discovers the threat of 'poisoning' the world first. Then, there could be a brave adventurer type who decides to take action against it. And of course, there may be a shadowy figure or organization behind the 'poisoning' plot as the main antagonist.
I'm not sure specifically as there could be many novels with this name. It might be about a character or group that has the intention or action of 'poisoning the world' in a metaphorical or literal sense, perhaps through spreading harmful ideas, substances, or causing chaos on a large scale.
One common theme is environmental degradation. The world is often shown as being poisoned by pollution, waste, or some sort of ecological disaster. For example, the air might be unbreathable or the water undrinkable.
I'm not entirely sure if it's a widely popular light novel genre. Some light novels with rather extreme or edgy concepts like 'poisoning the world' can gain a dedicated following, but they often don't reach the mass popularity of more common genres. It could be that the nature of the theme is a bit too dark or complex for the general light novel reader.
I'm not sure specifically which 'poisoning world novel' you are referring to. There could be many novels with themes related to a 'poisoning world' in different genres. It could be a post - apocalyptic novel where the world is poisoned by pollution, chemicals or some sort of dark magic. Without more context, it's hard to recommend a particular one.
Without having read the 'the world in 9 1 2 novel', it's impossible to accurately name the main characters. However, if we assume that the numbers 9, 1, 2 are related to the characters in some way, perhaps there are nine siblings and one of them, the firstborn (represented by 1), has a special relationship with a character who is an outcast or different in some way (represented by 2). But again, this is just wild speculation.
Sorry, I can't directly recommend a 'poisoning the world light novel' as it's not a very common type that I have ready - made suggestions for. You could start by looking at light novel review websites. Some lesser - known or indie - published light novels might deal with such a concept. You may need to do some digging through different tags and categories related to dark or unusual themes.
The main characters in the '7 wonders of the world novel' could be a diverse group. There might be a young and curious protagonist, perhaps a journalist or a student, who embarks on a journey to learn more about the seven wonders. There could also be some antagonists, like treasure hunters who are willing to destroy the wonders for their own gain. And there may be local people living near the wonders who play important roles in the story, sharing their knowledge and traditions.
The main character in the Magus World novel is Lei Lin. He is a key figure in the story and drives much of the plot forward with his actions and decisions.
I don't know the main characters as I haven't read it. Maybe it has a protagonist who tries to resist the perverted nature of the world in the story.
I don't have information about the main characters in this 'refining the world novel' as I haven't read it. But they could be a young hero with great potential, an old wise mentor, or a group of friends united for the cause of refining the world.