In 2077, the "red fog" swept across the world. Half of the human race was alienated in the fog and became irrational "carrion". Animals and plants mutated wildly, the earth's ecology collapsed, and civilized order was lost. The survivors struggled in the ruins, and people with special abilities became the key to survival. The protagonist Li Wei awakened the most special "beast language" and "domestication" abilities - he can understand the language of all mutant creatures, and can even conclude a contract with his will and adopt them for his own use.
