The war between the demons and humans arose from their struggle for the continent, but the two sides' fight to the death was closely related to a certain matter.
Demons ate humans.
This was the Human race's greatest fear and cause for anger, and also the greatest source of their courage.
In truth, regardless of the era, humans had never been the primary food for demons. At the very beginning, demons ate humans as if to express the traits of a more savage era, and they did so to mystify their battles, strengthen their bodies, flaunt their power, and frighten their enemies. However, with the passage of time, this action gradually became a habit for the demons.
Later on, this terrifying conduct no longer had the effect on the demons that it used to, and the frightening effect it had on humans had mostly transformed into resentment and courage. From every aspect, this conduct brought no benefits to this war between the humans and demons, only negative effects.