Zhongzhou, Coastal City.
Because it bordered the Azure Sky Sea, Demon Beasts from the ocean often invaded the land.
Therefore...
The walls of Coastal City were built exceptionally high. Atop the fortifications, which stretched for tens of thousands of miles, sat massive Spirit Crystal Shells.
These Spirit Crystal Shells were priceless and immensely powerful, far beyond what the ordinary Spirit Crystal Shells on the North King Warship could compare to. Each firing consumed one million Upper-Grade Spirit Crystals. A single, simultaneous volley from all the Spirit Crystal Shells on the city walls would cost over a trillion!
Coastal City's Teleportation Arrays were all built at the city gates.
There were a hundred gates in total. Each one stood several hundred meters tall and was forged from Celestial-tier Profound Weapons.
They were incomparably sturdy!
The cost of a single gate was over a billion Lower-Grade Spirit Crystals!
Gate Nineteen.
BZZZT!
