Undead Beast is a creature that inhabits both YGGDRASIL and the New World.
The appearance of an Undead Beast tend to vary between different animals.
Undead Beasts are creatures created from wolves, snakes, boars, and all sorts of animals. It is the kind of monster that combined the tenacity of zombies with the agility of animals.
When battling their prey, the undead beasts would try to gnaw at the feet of their enemies. After successfully immobilizing them, they dealt the killing blow, a style similar to wild beasts.
- In the Web Novel, the Undead Beasts were estimated to range from level 1 to 20.