This small part is the challenger's base.
If the base is breached, Monsters killed to the last, spiritual power depleted, the City Lord perished, and so on, these would all be considered as defeat; the same applies to the challenged party.
Both parties exhaust their imaginations on the battlefield to deploy Monsters, striving for victory in combat.
Compared to Evil Nest Dungeon's Underground City Lord, Ganago, who only had a small base to command, Gong Qiying could mobilize parts of Sain Dungeon that were connected to his domain.
When an enemy Dungeon fuses with one's own, a certain rule would restrict the usable area according to the scale of the enemy's base, usually twice to thrice the size of the enemy's area.
Thus, the bases of both sides are divided.
Since he didn't know where the enemy base would impact, aside from layering the City Lord's room with protective measures, he hadn't made many changes to the Dungeon's structure.
