C640 Hegemony

"Doctor? How old are you? " Liu Fengyun said with some suspicion.

"Liu Fengyun, what do you mean? Are you doubting my standards? " When Yu Tiantian heard this, she became somewhat unhappy.

"No, I just feel that you guys are still young and should spend more time studying in the school. Why are you out so early to work? It's really tiring." Liu Fengyun wiped the sweat off his forehead