Chen Mo, an unemployed programmer, rescued a mysterious white cat at a low point in his life and accidentally signed an ancient symbiosis contract. Not only was he able to communicate with the minds of animals, but he also glimpsed a fantasy world hidden under the steel city - an awakened animal population, an ancient underground network, and an "Animal Control Bureau" that regarded them as a threat. From struggling for survival to fighting for his partners, Chen Mo was forced to get caught between two species and multiple forces.
