The last line of defense for mankind is a group of geniuses who burn their lives
In the center of the world on the verge of destruction, stands a giant tree that stretches through the sky and the earth - the "World Tree". There are countless terrifying "beasts" surrounding it, and humans can only survive in the ruins.
The survivors built the last city, and what protected it was the "Spiritual Armor Academy" that trained spiritually armored warriors. Here, humans with spiritual power control "spiritual armor" - the only weapon that can harm beasts. However, even the top warriors are as insignificant as ants in the face of the beast tide.
