Zhu Ning, a warrior who fought her way through a zombie apocalypse, dies without warning and finds herself in a strange wasteland full of unknowns and fantasy. There she is a fifth-class citizen, the lowest rank in this world, and she earns her living by scavenging garbage. The work soon shows her how odd and dangerous her new home is: strange monsters tied to pollution, rules that make little sense, and even something strange about herself. Little by little she uncovers a vast secret concealed behind the world, and that knowledge puts her in serious danger. Drawn into tangled conflicts, she searches for the truth about herself and the post-apocalyptic world around her.