The Return of the Su

Qin Lang turned his head, a cold glint flashing in his eyes.,Qin Lang had endured nine hundred years of arduous cultivation and finally returned to his status as an Immortal Venerable, yet he never expected to be back in this era. Truly, fate is a fickle thing.,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。