"Does the Eternal World have Undead forces?"
There definitely are.
The types of troops that can be recruited from the Lord's Altar—Goblins, Skeletons, Vampires, Half-Orcs, etc.—indicate what races exist in the Eternal World.
At least, they once existed.
It's inevitable that the Undead forces exist, it's just that Mu Yuan might be somewhat ignorant and hasn't heard much about them.
From what he understood, the current Vitality Forces are mainly composed of humans.
The Descenders' Seven Great Nations, the native forces of the Holy Griffon Empire, Star Luo Holy Palace, Qisuo Anta Federation, and other forces mostly consist of human races within.
On the other hand, the Federation of All Nations is home to Elves, Orcs, and other sub-human groups.
There are also the Dwarven Nation, as well as Dragon Valley, where many Giant Dragons reside.
