Ye Shengxue's invitation

The voice belonged to Ye Shengxue who had been missing for many days.
"Are you sure you want to meet me?"Frank Fang asked, narrowing his eyes slightly.
"Yes." Ye Shengxue's tone was cold and hard, without any fluctuation, like a robot.
"Okay then, I happen to be free."Frank Fang replied.
"See you at Beixianglou at 7 o'clock tonight." Ye Shengxue said coldly and then hung up the phone.
Frank Fang put the phone back into his trouser pocket, stroked his chin, and began...