C169 Knocking on the Stone Wall

"I once heard my master mention a type of magic circle that can bewilder enemies! It's akin to an illusion, capable of making people lose their bearings and become lost within it. However, a magic circle is far superior to an illusion because while an illusion can be shattered, a magic circle isn't mere fantasy—it's a tangible experience that can't be broken."

Upon hearing her explanation