C170 Thousands of Mountains of Corpses
"Brother Qi, the miasma in Myriad Corpses Mountain can indeed corrode a warrior's body. It's the miasma in the outer region of the Myriad Corpses Mountain. Once it's infected... The deeper you go into the Myriad Corpses Mountain, the more pus you will turn into pus. The corpse miasma is getting stronger and stronger."
Xiao Sheng, the sword artist Mo Lu