Well, 'class ga isekai shoukan sareta light novel' could potentially be about a group of students in a class who are suddenly summoned to an isekai world. Maybe they have to face various challenges, like fighting monsters or dealing with political intrigue in this new world. However, this is just speculation based on the title.
Since I don't know the specific details of this light novel, I can't say for sure who the main characters are. But it could be some students from the class that was summoned.
I'm not sure specifically as I haven't read this novel directly. But generally, a title like this might be about a summoned sage who travels to another world. It could involve the sage's adventures, the challenges they face in the isekai world, and perhaps how they use their wisdom or powers.
The title indicates that the summoned sage is a key character. There may also be other characters like those who summoned him, or characters he meets in the isekai world such as local inhabitants, other adventurers, or even potential foes.
The title 'Shoukan sareta kenja wa isekai wo iku novel' gives the impression that it's a story centered around a summoned sage. In many isekai novels, the summoned character often has to deal with new and strange environments, different cultures, and various challenges. This sage might be no different. He could be using his wisdom (since he is a sage) to survive and thrive in the isekai world, perhaps making allies, facing off against enemies, and uncovering the secrets of this new realm.
Some similar isekai novels could be 'That Time I Got Reincarnated as a Slime'. It also involves a character going to another world and has elements of adventure and building a new life in the isekai. Another one could be 'Overlord', where the main character is transferred to an isekai world with his in - game powers. And 'Sword Art Online' has some isekai - like elements as well, especially in the Alicization arc where the characters are in a virtual world that is very much like an isekai.
I'm not sure specifically as I haven't read that particular 'kaiko sareta light novel'. It could be about various things like a fantastical adventure, a coming - of - age story, or a mystery set in a unique world.
I don't know who Ken is specifically. The story he is telling could be about his personal experiences, like a trip he took, or it could be a fictional story he made up, perhaps a fantasy adventure with magical creatures.
I'm not sure who Mr Ken specifically is in this story without more context. It could be a character created by an individual author, perhaps a local or personal story where Mr Ken is a neighbor, a friend or an acquaintance.