After a long period of time, the deterioration of the earth's environment has caused the ozone layer to be depleted. The once gentle sun has become a cruel scorching sun. In order to combat this natural disaster, humans built the Eternal Life Tower. The special ore used in the Eternal Life Tower can shield radiation - which gave the people in the tower temporary peace. However, mutated monsters are rampant outside the Eternal Life Tower, and the class solidification problem within the tower means that this peace is destined to be only temporary...
Concept: Doomsday fantasy