A few reasons came together in the choice for Japan as a setting for my novel.
Honored to meet his excellency ambassador Horinouchi of Japan.
My novel Can Machines Bring Peace? has a wide range of characters. Every protagonist deserves companions, because no one can go at it alone.
Once you build a world for a novel, you need to fill in more and more details. Like currency. Because the characters talk about paying for food or services, about salaries, rent and other mundane things, I had to actually set prices.