Ocean of Clouds City.

The entire city was surrounded by towering mountains that formed Welkin Wolf Mountain Range, so it could be said to be being attacked from all directions.

The army of countless wolves charged successively towards the city. They attacked the city in the most violent manner, and that was to smash their bodies against the city!

Such terrifying and insane attacks which completely disregarded their survival caused cracks to appear all around the city walls, ...