The "manifest world" (the scientific and technological civilized society recognized by ordinary people) and the "hidden domain" exist side by side on the modern earth.
(The mysterious space where alien beasts and ancient tribes remain in "The Classic of Mountains and Seas"), the two worlds pass through the "spiritual node" (such as the ancient beasts buried deep underground).
Tombs, undeveloped mountains, ancient books and cultural relics carrying ancient energy) are weakly connected. Due to industrial pollution, over-exploitation, etc.
Due to parasitic activities, the energy of spiritual veins continues to decay, the hidden realm is on the verge of collapse, and the living space of alien beasts has been sharply compressed.
