There are four continents scattered on a distant blue planet, and the continents are surrounded by oceans. These four continents are so isolated by the sea that the people on the continents do not know each other. Until one day a meteor hit the moon hanging high in the sky, and the moon fell apart in an instant. Sea water poured in, volcanoes erupted, and disasters occurred everywhere. There were countless natural disasters and man-made disasters. Then came the plague. People on the continent had nowhere to escape. As a last resort, the remaining people could only build bunkers underground to survive. In this way, the surviving people started a new life underground. . . . . . . .
Intention: endless life