Gesterbourg was a building with a long history even back in the Old World. The tall towers and sturdy outer walls allowed it to withstand repeated tests since ancient times.
Its outer walls and towers were now riddled with holes and filled with cannons. It exuded a feeling of deterrence just looking at it from afar.
These modifications originated from the Chaotic Era. The people who had gathered in this ancient castle had discovered a military warehouse nearby, moved out a large number of cannons, and restructured the building to resist the crazy Heartless and the wandering bandits.
As time passed, as an important stronghold at the northern border of the White Knights, not only had it been reinforced and replaced with the latest and most suitable cannons, but fortifications were also raised around it, forming a complete defense system.