We can cooperate, but let's get one thing straight from the start; don't agree to everything now and then later, as Xiyuan grows and everyone's appetites increase, force Zhenzhen to reveal the supplier of the ingredients.
If there were such a supplier ... she wouldn't tell even if she could, but since she can't, we must reach a consensus on this first.
If we can't come to this consensus, there's no point in continuing the conversation.
To Pei Ziyu's surprise, Fan Tianyu still didn't know the source of the ingredients at this point, even though he knew they were arranged by Mei Mengzhen. He hadn't asked in detail, as it wasn't his business, and asking too much wasn't appropriate, but how could Fan Tianyu just follow along without knowing anything? It was hard to say if he was bold or foolish.