Demons, beings from another dimension, powerful and true to their wants, they conquer dimension after dimension, seeking even more power.
One of their main traits that all demons possess is that they can cause mental pollution to any other being near them. Weaker demons could affect a few people near them. They would cause nausea, uneasiness, and headaches, but strong individuals would not be affected.
Stronger demons would cause depression and would make one want to do their deepest darkest desire without thinking about the repercussions. Only truly strong individuals could withstand their mental pollution.
Now, Archdemons, their mental pollution would make one want to kill oneself or drive one insane. If they don't hold back, they could affect a very large area with their mental pollution.
