So after the node is damaged, they can immediately use the core to extend the city wall back.
This prevents the problem where the opponent's advantage quickly expands due to a single node being destroyed.
The Demon-Defending Fortress is also the place guarding the largest passageway.
If that place is breached, almost the whole world, including the scar, would be in danger.
The earliest time humans were able to combat demons was due to countless ancestors shedding their blood there to build that fortress.
Grefar basically alternates between the Demon Hunting Fortress and the Demon-Defending Fortress.
For Grefar, the Demon-Defending Fortress is the main battlefield, and the Demon Hunting Fortress is like a place of rest.
Even if the Swallowing Maw leads his troops to attack here, taking advantage of the fortress, Grefar doesn't need to respond too seriously.
