It would have been fine if she hadn't said anything, but as soon as Xia Siyu heard this, her temper flared up, and she immediately smiled and said, "Since Director Ji put it that way, wouldn't it be awkward if I didn't go? Besides, how can I let Director Ji treat us? I'll treat!"
Xia Siyu has always been free with money; she's the kind of person who likes to spend money to buy happiness. So unless you really anger her, she generally pays out of her own pocket to treat the whole crew and guests to coffee, tea, or small gifts.
Director Ji laughed, "No way! If I say I'm treating, then I'm treating, but tonight, you must drink three glasses! No more, no less, at least three glasses!"
Unless she's with Bo Yan, Xia Siyu always claims that she can't handle her liquor — even with beer, she doesn't drink more than one glass. Wei Jingjing wouldn't allow it. She immediately replied, "Beer, beer, I really can only handle beer. Drinking more is a no-go; I still have to film tomorrow."