The beginning of a new era is accompanied by apocalyptic disasters, earthquakes, tsunamis, and volcanic eruptions. The power of nature is encroaching on the land where humans once built their nests, as if they want to wash them all away and restore them to their former appearance. However, this is all the fault of human beings. The environment continues to deteriorate and the ecosystem is destroyed. Human beings are really busy fighting for power and profit and fighting against each other. In the apocalypse, a small number of privileged people took the most advanced spaceships to alien colonies, while the rest of the people could only hide in underground cities and let their fate take hold.
I don't know how long it took, when the contradiction between human food reserves and population gradually became more prominent, the first group of people were forced to go above ground. Most of them were criminals who broke the law and had grown up in underground cities. After living underground for a long time, they happened to encounter the first ray of sunrise when they came out. They squinted their eyes unaccustomedly. After their bodies gradually adapted to the surface environment, they were surprised to discover another great creation of nature - cards.
Purpose: No matter what adversity we face, we must maintain an optimistic attitude and actively face and solve problems.