C639 Chapter 639 real things

"Can this method really achieve immortality?" Cheng Shan still felt that this was unbelievable.

Duan Chengxuan threw the scroll onto the fire without hesitation. Qi Rou did not say anything, he merely stood up and looked at Cheng Shan: "If it's a miraculous medicine, with just one or two taels of silver, others will think it's a quack and swindler