Perhaps there is a wealthy merchant. This character can represent the economic power and the way business is conducted in the floating world. They may also interact with other classes in interesting ways.
There might be a courtesan as a character. Courtesans often played important roles in the floating world culture. They could be a symbol of beauty, grace, and also a part of the complex social fabric, interacting with different types of people and influencing the cultural trends.
The main characters might be individuals who are at odds with the norms of the 'floating world'. For example, there could be a protagonist who is a rebel and challenges the established order in this unique world. There might also be supporting characters like friends or mentors who help the main character in their journey.
As I haven't read the novel, I'm not sure who the main characters are other than Gina, who is likely the central figure. There may be other characters who play important roles in Gina's life in the floating world, such as friends, family members, or perhaps rivals.
I'm not sure exactly without having read the book in detail, but there could be a strong, resilient female character who represents the hope and strength of the common people during the difficult times of the 'winter' described in the novel.
I'm afraid I'm not familiar with the author of this novel. It could be a relatively new or less - known work, so it might take some research to find out who wrote it. Maybe checking with local bookstores or asking in book - related forums could help.
Bigby is another well - known character. He is also a wizard, famous for his Bigby's Hand spells. His actions and decisions play an important role in some of the key events in the novels.
I'm not sure as I haven't read the 'floating worlds novel' specifically. But typically, in a novel like this, there could be an adventurous protagonist who is eager to explore the floating worlds.
In the 'harem in the labyrinth of another world novel', the protagonist is a key character. He has to deal with the challenges of the labyrinth and manage his relationships in the harem. There may be a mentor - like character who gives him advice on how to navigate the world and the labyrinth. Female characters in the harem are also notable. They each have their own backstories, skills, and relationships with the protagonist. For example, one might be a strong warrior, another a healer, and their interactions with the main character and among themselves shape the story.
The protagonist is Suzuki Ichirou. He is a programmer in his original world and becomes a powerful figure in the parallel world.
It's possible that there is an antagonist in the 'floating orbs visual novel' too. This character might want to use the power of the floating orbs for evil purposes, like taking over the world or causing chaos. And on the side of the good guys, there could be a diverse cast of characters, from different backgrounds and with different skills, all united by their interest in the floating orbs.
Since I haven't read this novel, it's hard to say for certain. However, it could be about a place or a concept that is in a constant state of movement or change. It might tell the story of individuals who are trying to find their place in this floating world. It could also deal with themes like identity, as the characters may have to redefine themselves in the face of a world that is always shifting.