Since unknown causes broke out in various places and spread rapidly, the normal human living environment has been threatened. Infected humans will turn into zombies after a period of time and bite other living creatures. Humanity has since entered the end of the world...
In the middle of the apocalypse, the human world gradually formed a pattern with a large center as the point, small manors distributed in a network, and a huge scientific research institution somewhere underground. The center is mainly composed of the government and the military. They are mainly responsible for the planning and mobilization of regional resources, the research of macro policies, and inspection and supervision. The number of scientific research institutions is very small and they are all concentrated in an underground scientific research base. It is heavily defended and protected by the military. The government also gives priority to the supply of materials and policy preferences for scientific research needs to the maximum extent. There are many subjects in the scientific research base, which are divided into various research groups. The most important one is the research on zombies, starting from various aspects such as zombies, vaccines, and the biological functions of newborns. There are also other research groups closely related to human life such as agriculture, construction, and medicine. Scattered around the center are the manors. They are small in area but numerous in number and widely distributed, ranging from a few people to dozens of people. The living spaces between the manors are strictly independent, which has the advantage of preventing the rapid spread of zombie viruses among the crowd - after all, there are only so many people in a manor. The manor is mainly engaged in the direct production of materials, mostly agricultural and animal husbandry handicrafts, and there are also other manors. Each manor forms a guild, which is managed by a relatively loose guild organization. It accepts central dispatch, exchanges materials, and supports scientific research.