As I haven't read it, I'm not sure. But it's likely that there are some unique characters. For example, there could be a person who discovers the reborn - as - underwear character and has a special reaction to it.
I'm not really familiar with this specific light novel. But generally, it might be about a character who is reborn in a rather strange or unique form related to underwear. Maybe it involves some kind of magical or fantastical elements that are connected to this new form.
There could be stories where a gay man's underwear fetish is intertwined with his self - discovery. Maybe he grew up feeling different about underwear compared to his peers. For instance, he might have been attracted to bright - colored or designer underwear from a young age. As he grew older and came to terms with his sexuality, this fetish became more of a part of his identity, something that he shared with his partners who were understanding and accepting of this unique aspect of his personality.
Well, the main character as the vending machine is the most interesting. But there could be other characters like the local kids who are curious about the vending machine. They might try to play tricks on it or befriend it in a way. And there could be some sort of authority figure in the town where the vending machine is located. This person might have different views on the vending machine's presence and deal with it in various ways.
The antagonist is often very interesting. In Assassin Reborn, the antagonist might be someone from the assassin's past who has also changed or someone who is threatened by the assassin's new - found power. Their motives and methods of trying to stop the protagonist can be full of twists and turns, making them a character to watch out for.
The slime protagonist is quite interesting. His transformation from a human to a slime and his unique growth process make him stand out.
Since I don't know the specific novel, it's hard to say for sure. But there could be the main character, the vending machine itself, which would be an interesting character as it has a unique perspective. There might also be some customers that stand out, like a very loyal customer who always buys from the vending machine.
In this light novel, the main character, the vending machine, is full of intrigue. It has to navigate the world in a completely different way compared to its previous life. Then there are the local people in the story. Some might be curious about the vending machine, some might be greedy for the items it offers. These different types of people add color to the story. There could also be a character who befriends the vending machine in an unexpected way, which is really interesting.
Since I don't know the details of 'dive light novel', it's hard to say for sure. But it could have characters like an experienced dive instructor who is full of wisdom and interesting stories. There might also be a young and adventurous diver who is always eager to take risks and explore new areas.
Since I don't know much about Mahoiku light novel, I can't say for sure if there are interesting characters. But most light novels do have some unique and engaging characters.
I don't know for sure as I'm not familiar with this particular light novel. But generally, light novels often have unique characters. There might be a brave hero, a cunning villain, or a mysterious sidekick.