Shopkeeper Zheng chuckled and said, "Alright, I've purchased this ointment on behalf of the shop. You can use it yourself, but don't sell it to other shops."
He pondered for a moment and then suggested, "As we're acquaintances, let me offer you a lucky number, how about eighty taels?"
Manbao was startled and said awkwardly, "That seems inappropriate..." After all, the recipe wasn't her own creation; it was Teacher Mo who found it in a book to treat Second Madam Cheng.
Shopkeeper Zheng misunderstood, assuming she was hesitant to negotiate, so he smiled warmly and said, "Although we have a connection, business is business, and we need to keep that clear."
He insisted, and Manbao reluctantly accepted.
Then, she took out a silver ingot from the eighty taels, bought many delicious foods, and various prepared medicinal herbs and stuffed them into the system.
Once she got home, she sent these items to Teacher Mo.