The Return of the Su

Qin Lang looked at the two men with icy eyes. As a decisive Immortal Venerable from another world, Qin Lang's gaze sent chills down their spines.,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.,The doctors in this world can't cure this poison. Who is it, and what kind of grudge do they have against their father to inflict such a deadly blow。