C51 Why are you two here as well?

Why are you two here?

"Flight N7937 from Tianhai City to Shangjing City is about to take off. Passengers who have yet to board the plane, please hurry and board the plane …"

At the departure gate, Ye Liuyun and Fatty Xu Chu checked their tickets and boarded the plane in excitement.

According to Fatty's original intention, they were to take the high-speed train to Shang Jing. However