Within the cave-like dunegon that is Erden, there existed a place that looked almost nothing like a cave should. The place was somewhat wide and had rocks all around—something that resembled a cave chamber.
But within the chamber was a forest of all kinds of trees. The trees were scattered around, with all kinds of animals living within or below them. This made the chamber look more like a park than a cave. And with the bright light from the artificial suns in the sky, it made for a sight most would pay to be in. Had the sky been blue, one would have thought that they had visited a new world rather than entering a dungeon.