Apocalypse: My Desert Fortress

"If the apocalypse is a selection process, then I'm the rat that escaped the petri dish."

"The rain will stop." Zhou Wang told the last seventeen people in the fortress. "But until then, we have to be like camel thorns in the desert, driving our roots into cracks in the rock. Stay alive and wait for clear skies."

But they didn't know that this rain would never stop.

It was merely changing its methods and continuing the selection.