In the year 0XX, Tian Zhao entered civilization, and the death penalty was completely abolished for the sake of harmony and humanity. However, as a result, the crime rate in society skyrocketed. In a rage, the government began to exile the criminals, and the worst offenders were exiled to twelve deserted islands in the surrounding sea, known as the "Twelve Islands of Immortal Mountains", to fend for themselves. The climate, vegetation, island appearance, and animals on the "Twelve Islands of the Immortal Mountains" are all different, and the only thing they have in common is that they are not suitable for people who are not used to city life. If you want to survive, you have to throw away all kinds of reasons for not cooperating, unite together, and fight desperately against the beasts and hunger! And all killing is for one purpose only-to survive!