Chen Ye accidentally met Liuli who had lost her memory during an ordinary repair work, and found that she was being hunted by the supervisor. In the process of helping Liuli hide, Chen Ye discovered that Liuli's resonance ability could miraculously soothe his spiritual world that was confused by past trauma. In order to retrieve Liuli's memory and protect her, Chen Ye was forced to step out of his comfortable corner and go deep into the black market in the root zone to seek help, and gradually uncovered a shocking conspiracy: Cangqiong Group was not "protecting" the resonators, but conducting an experiment called "Hive Mind", trying to use the most powerful resonator (i. E. Liuli) as the core to connect the spirits of all citizens to the AI "Sky Eye" to create a "perfect society" without negative emotions. Chen Ye's ultimate goal changed from "helping Liuli" to "stopping Cangqiong Group and defending human free will."