Siheyuan: If I Ask You to Treat a Disease, You Will Kill an Animal.

Traveling through the Qingman Courtyard, Zhang Yuan became a generation of old miracle doctor. The moment he opened his eyes, Zhang Yuan collapsed... I actually traveled through time and space into the body of an old man. An old Chinese medicine practitioner who is over 100 years old. Just when Zhang Yuan sighed, a machine sound came. Bite! The system automatically starts binding. "Miracle Doctor System" The greater the disease successfully treated, the more generous the reward will be! Although he is already a hundred years old, the system is still quite considerate, and it is not a problem to live for a few more decades. Are the beasts in the courtyard trying to rob my house? Don't even think about it!