And now there has emerged a particular saying.
A city is divided into the outer city and the inner city.
The outer city is what everyone sees on the street. The inner city is connected by private hidden spaces of each household.
The outer city is very prosperous and modern.
The inner city, being a hidden space, is highly mysterious and profound.
The inner and outer cities are connected by space doors within each resident's home. Additionally, some enthusiastic individuals have established larger portals on the streetsides that lead to the inner city.
The transportation in the inner city is somewhat inconvenient.
After all, each household's hidden space is created through space magic and doesn't actually connect directly; it takes considerable effort to link them, making it a bit troublesome to move from one house to another, and even more difficult to tour and sightsee across many households' magical spaces.
