"So, shall we discuss the cooperation steps and profit-sharing next?"
After thinking for a moment, you said, "You'll provide the materials, and I'll be responsible for alchemy. Plus, there will only be one bottle per week, approximately twenty pills."
Xi Yu nodded, "Twenty pills is quite a lot already, so for the profit-sharing, how about we take three parts, and you take seven?"
You smiled and shook your head.
Xi Yu seemed surprised, she hadn't expected your appetite to be so large and tentatively asked, "What about two for us, eight for you?"
You still shook your head, with your smile growing broader.
Xi Yu fell silent for a moment before speaking with a hint of helplessness, "How about we take one part, and you take nine parts?"
Finally, you spoke, "It should be the other way around; I take one part, and you take nine parts."
Xi Yu was instantly taken aback, her mouth slightly agape, and for the first time, her usually composed face showed a look of surprise.