The Evil, in a general context, is taken as the absence or complete opposite of that which is ascribed as being good. Often, evil is used to denote profound immorality. In certain religious contexts, evil has been described as a supernatural force. Definitions of evil vary, as does the analysis of its root motives and causes. However, elements that are commonly associated with evil involve unbalanced behavior involving expediency, selfishness, ignorance, or neglect.
The Evil in Berserk is represtantion of Idea of Evil in Human World. Evil is all negative thoughts in the human heart, even after their deaths evil still lives in the world. It can possesses living or non-living bodies such as weak-willed humans, animals (horses, dogs) and even non-living organisms such as snows, stones, earth, wind, trees etc. When it possesses the living bodies, the body starts the deformations and loses its control. Evil-possessed humans start to eat their relatives, other people.
In the Incarnation Ceremony, the evil thoughts are so intense it physically materialized in a form of corrosive liquid mass. It corrupts human bodies like an acid, absorbs them and grows in size. In these form, they cannot be attacked by weapons except fire. Fire burns and destroy them completely.
- Evil is named "Demon" by many people, in the Incarnation Ceremony.