Prince Zhao had a falling out with "Fisherman's Noodle," and when they went out to buy ingredients, no one dared sell to them, especially seafood. If you wanted to buy it, fine, but only the not-so-fresh stuff. The fresh ones? Ha! No amount of money could buy those.
Yan Qing hadn't yet managed these business matters, while Prince Zhao, an alien prince, had, over the years, gradually infiltrated the vendors and peddlers of Beijing. Xiao Yu saw this as a dangerous signal, so she wickedly said to Yan Qing.