A thunderous voice shook the Blue Planet.
Then, a strange phenomenon appeared in the sky.
An incomparably chaotic red aura enveloped the sky.
A red vortex door seemed to be opened by a majestic and vast power, as if an endless purgatory had opened.
Wild power constantly seeped out from the red door.
Everyone in the world was no longer unfamiliar with the phenomena descending from the sky because it was a sign that the Otherworld Instance Dungeon was about to descend on the Blue Planet.
[Otherworld Instance Dungeon: the otherworldly
[Difficulty Level: 4 stars.]