The virus leaked, and a mutant called the Corpse Man broke out. The entire human race collapsed. Above-ground research institutes and underground living cities were established. The remaining humans could only survive here. But is it really desolate outside the protective wall? A rupture of the protective wall reunited two people who had been separated for many years. Will they choose to embark on a journey to save mankind, or rekindle their old relationship and live a stable life?
Concept: What kind of creatures will humans be in the apocalypse?
