Five years have passed since the apocalypse, and all kinds of resources are in a state of extreme scarcity. The surviving humans have gathered together in various sizes of towns!,That was on the second day of battle, when he carried a badly wounded soldier back to the underground shelter, the dying soldier shoved a blue crystal into his hand. Before he could say another word, he died.,Watching the two of them, their breaths slowly weakening, they entangled with each other and fell.。