In this way.
The eighth-circle "Magic Poison Acid Rain" targets demons, the ninth-circle "Fear Fog" targets Nightmares, legendary spells target the astral world, forming the plague sequence.
...
Nightmare World.
The trump card originally belonging to the Black Dragon Territory has a new master.
It's called the "Greedy Tyrant," under the banner of the Devouring Sky Demon Lord, coiled like a greedy serpent on the wilderness, devouring everything before it.
Levi quietly appeared, not disturbing it.
After some time, he arrived at the Ghost Alley Monarch's Big Domain, casually found a prosperous city, and stealthily cast the "Fear Fog."
The nightmare creatures within the city were unaware of the impending disaster.
No one knew when a patchy gray mist began to linger on the Chaotic Wilderness, initially unnoticed by the nightmare creatures.
