Xiao Moyuan, a former crisis negotiator, survived an outbreak of a parasitic fungus that turned humans into "echoers." These monsters will continue to repeat their last actions in life. He was driven by one goal: to find his sister, who was attending college in another city. With the negotiation skills he now uses to manipulate survivors and the environment, Xiao Minyuan navigates a dangerous world where the greatest threat is not only the infected, but the desperate, suspicious remnants of humanity. The journey forces him to face dark truths about the Outbreak and question whether the sister he remembers is still human.
