C449 Don't be too Realistic

The grandma didn't know what Doctor Huang was talking about. They hadn't told anyone about the transfer of children, so how did he know?

"How do you know so much?" The old granny was a little surprised, she really couldn't underestimate this man in front of her.

Doctor Huang didn't know anything else in this world. "How do you think I know? I have been in contact with these herbs since long ago