Creating an unshakable reality is not that difficult; it simply requires starting from the simplest construction, the most basic defense facilities.
People of course well understand the meaning of city walls on the surface.
Standing behind city walls means being protected by them, they are the solid shield of the soldiers.
Perhaps for humanity's stronger individuals, regular ironwood shields can be effortlessly cleaved by a battle axe.
But no one has ever heard of city walls that can be destroyed by human power!
The earth is made of soil, and when Violet ordered her subordinates to build the city walls, some wood was used to speed up the process.
However, fundamentally, these simple city walls were mainly composed of earth.
This meant that the city walls were an extension of the earth, and nothing could destroy the earth except magic!
By doing this, a tangible city wall is created in the reality and psychology of people.
