Xiao Wen, who lives alone, discovers that the "tremella soup" sent by Aunt Zhao downstairs is actually a live symbiote larvae, and he is involved in the company's conspiracy after being parasitized. She met Master Li, Lin Mo, Professor Zhang and other hosts, and learned that the symbiote was originally a kind life, and it only took over after being tampered with by the company. Everyone fights to resist the pursuit, awaken more hosts, and destroy the enhanced pharmaceutical base. Aunt Zhao died, and Xiao Wen and the symbiote were fully awakened. Finally, they gathered more than 60 hosts to break into the company headquarters and put an end to the ultimate conspiracy.