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.,Just as Xu Tian's shadow turned the corner, a gruesome scene unfolded before his eyes!,The blue crystal in his hand was obviously inconvenient. In a hurry, he had nowhere to put it, so he unceremoniously swallowed it!。