C572 Arrogant People

"Oh? What happened?" Hee Loongyan and Yang Ping asked curiously.

The old man waved his hand and sat down on a chair at the side. " Originally, I went abroad to participate in a medical research project. Everything went smoothly on the way, and I learned everything I needed to learn. However, he did not expect that a week ago, Lee Zaixin, that old thing..