In his previous life, Qin Chuan's father died under suspicious circumstances. Qin Chuan always suspected that this dog couple had poisoned him, but he had no evidence.,Qin Chuan strained his neck to turn, opened his mouth, but could only gasp out Qin Lang's name before gasping for breath and feeling his eyelids growing heavy, as if he were about to faint.,A slow poison! And a particularly insidious, particularly troublesome kind of slow poison!。