Obelisk was a gigantic four sided, narrow tapering stone pillar with countless of Demonic Runes Carved on its surface. Its height varied from 800 meters to 1.3 kilometers, and its width varied from 50 to 80 meters.
Obelisks were the only gigantic monument that every living beings hated. Even so, the Obelisk itself couldn't do any harm to them. However, the world behind the Obelisk did; this became the reason why they hated it.
Obelisk was the boundary between the land of the living, and the land of the cursed. An active Obelisk produced a Barrier that separated the two lands to protect the population of the strongest Demon residing behind it; it didn't produce Demons.
When a weak Demon was born inside, it would be thrown outside of the Barrier; no weak Demons would be accepted inside. This was the reason behind the phenomenon of "Monster birth."
