Yes?

If the negotiation could be done well, not only Aurora would benefit, but White Dukedom will also benefit greatly.

But Aurora was taking a big bet by bringing Duke Sun into her first negotiation.

What if she fail?

It would only end badly. 

"Don't worry," Aurora said slowly. "I have a sense of measure."

When she came to pay a visit to the festival, she had noticed the faint differences between the product from Duke Sun's territory and also the one from the Sand Kingdom. Back then, she didn't think too much about it.

But after seeing her sister's change and the notes written there, Aurora had the faint feeling that if things were truly going in that way, it wouldn't end well for her. 

So she chose to make this big move.

Whether it would succeed or not was not yet known. But it would be better to do something rather than doing nothing when she already had some suspicion about a bleak future waiting for her.