Light novels often have complex and engaging plots. 'Iris zero' might be about a group of characters in a fictional setting. It could involve a mystery where the 'iris zero' is a key element, like a special ability or a rare object that everyone is searching for. It may also explore relationships between the characters as they try to uncover the secrets related to 'iris zero'.
I don't know the main characters in 'iris zero light novel' since I haven't read it. But usually, in a light novel, there are protagonists who drive the story forward. They could be young adventurers, students, or people with special abilities.
Re:Zero is indeed a light novel. The story is rich and detailed, which has made it very successful. It has also been adapted into anime and other forms of media.
I'm not sure specifically as it could be many things. It might be a story about the contrast between light and dark in terms of themes like good and evil, or it could be related to the iris in a more symbolic or magical sense, like an iris that has the power to control light and dark elements.
Re:Zero started as a light novel. However, the popularity led to a manga version being created too. Both have their own charm and follow the same basic storylines, but with some differences in presentation and details.
The Re:Zero light novel is a Japanese fantasy story that follows Subaru Natsuki as he's transported to a strange world and faces various challenges and mysteries.