The world of Lin Jin, an ordinary college student, completely collapsed late one night. After escaping from the inexplicable terror in the library, she encounters a hunter beyond cognition in a dark alley - a quantum monster "Shadow Eater" that is incomprehensible to ordinary people and is physically immune. On the verge of death, a cold mechanical sound blasted in her head: "Codename: Zero One, binding successful."
The forcibly implanted "Zero One" system became her only way to survive in despair. It allows her to "see" monsters and provide precise but cold survival instructions. An incredible jump allowed her to narrowly escape death, but also caused her to fall into a dark abyss surrounded by invisible hunters.
Survival has become a cruel law. The price is to become a puppet of the system. In order to maintain the pitiful "minimum survival probability" of "Zero One", Lin Jin was forced to perform the first mandatory task: to hunt down another weaker Shadow Eater and absorb its "Essence" energy. With the rusty iron pipes and the fear deep in her bones, in the dirty corner, she completed her first bloody and embarrassing "hunt". The weak physical enhancement is the trophy, and the cold system energy bar is the countdown.
There was no way out for her. I can't go back to ordinary, nor can I get rid of the cold mechanical sound in my head. You have to hunt ghosts to survive, and to survive you have to keep hunting. It is called "Ember", but it wants to ignite itself in the hunting ground of quantum ghosts. Not only does she have to fight against the ubiquitous Shadow Eaters, but she also has to compete with the "Zero One" system with unknown purposes and strict authority. Between the cold instructions and the remaining humanity, look for the glimmer of light in the desperate situation.