The Shadow Devil was a weird and powerful monster. According to people who had encountered it, it had a human-like appearance, a black-red figure. However, its form was not fixed and could be arbitrarily changed. It liked to hide in shadows normally, but not necessarily for ambush or sneak attacks. It was purely a hobby.
It was said that it belonged to the monster of a dead ghost, so it resented living things. Although it possessed terrible power that could destroy a mountain, it was keen to kill its targets by devouring their vitality. Its most terrible ability was contaminating and binding the souls of those who had been killed by it, and turning them into shadow soldiers.
