Qin Lang was baffled. He realized he had been reduced to his original form, yet he hadn't expected to be transported back to his youthful self nine hundred years ago.,Qin Lang suddenly remembered, today was his release day, but also his father Qin Chuan's death anniversary. At this time, Qin Chuan should be lying in the hospital bed waiting for him, hoping to see him one last time!,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。