In order not to disturb the family life of Jiao Zhai and Xiang Zhen, Mi Jiang and Jing Ke decided to return to the interstellar world fifteen years ago, and went to Jiangying City with Meng Shuying to attend the opening ceremony of the Interstellar Games to say goodbye to the current era. However, during the opening ceremony, a mysterious virus called "Killing Line" suddenly broke out on Yaohua Star. Due to the lack of response experience of the Jiangying city government, the virus spread rapidly and the entire city had to be put under emergency lockdown. The Yaohuaxing government asked the top technology company "Shenlong Group" for help, requesting that the source of the virus be traced and a vaccine developed as soon as possible. Meng Shuying implored Mi Jiang to stay and help control the epidemic, and Mi Jiang agreed to lend a helping hand. As the virus spreads to other planets, the three of them embark on a race against time: tracing the origin of the virus while assisting governments of all parties in combating the epidemic. In the process, the artificial characteristics of the virus gradually emerged: it will not kill natural people with "high intelligence" or "warrior" genes, but edit their genes and transform them into half-human, half-animal hybrid life forms; but it will ruthlessly kill ordinary people. As the truth approaches, can the three find the murderer who created and spread the virus, so as to reverse the crisis...
Purpose: It is not natural law for the weak to eat the strong