Food is already scarce, and surviving humans are still fighting each other relentlessly!,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.,Xu Tian's eyes were bloodshot, he suddenly lowered himself, picked up a stone with both hands, and roared as he charged forward. He frantically smashed the stone against the head of the enemy who had already fallen to the ground!。