Don't Learn From Your Grandpa

"I was unconscious for 20 years. The doctors all said that I wouldn't wake up, but I still miraculously woke up. All of this is thanks to Xi Xi. The medicine Ah Xiao left behind must be for Xi Xi to save her life. I didn't expect her to leave such precious medicine to me just to ask me to help you. I'm already in my 90s and won't be able to live for long. It really wasn't worth it for her to give me the medicine!" the old master continued.

Only then did Gu Zheng remember that Qiao Xi seemed to often go to Blue Dream Pavilion. That was the stronghold of the Medical Association. She went there for many days before coming to the Lu family to wake the old master up.

If that medicine was left behind by the divine physician, she could have taken it out to save the old master a long time ago. Why did she have to wait until now?