The Return of the Su

"This Qin Lang, he's simply arrogant! You're his brother after all, how could he treat you like this",Following the path of his memory, Qin Lang found Qin Chuan's ward at the fastest speed. The moment he pushed open the door, Qin Lang saw a group of doctors busily surrounding Qin Chuan's bed.,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。