C374 The Source of the Pill(part Ii)

"Oh my God, grandpa Xu, I don't think I can call you grandpa anymore. I think I should call you Uncle Xu. Compared to before, you are at least 20 years younger. Even your hair has become a lot darker."

Looking at Elder Xu, Zhang Fann rubbed his eyes and said loudly.

In fact, Zhang Fann's tone wasn't exaggerated because Elder Xu looked much younger now