Tutorial/Miasma

Since antiquity, an anomaly known as "miasma" has been endemic to the mountains and rivers of Chenyu Vale. If an ordinary person inadvertently inhales this gas, they will often suffer from headaches and chest pain for days.

Miasma may not be fatal to humans, but long-term exposure to it does affect wild animals and monsters, making them more violent than usual. The more powerful the monster, the more severe the effects.
Try defeating the leader of the monsters, before following the trail to the source of the miasma in the area and purifying it with adeptal energy.