A Ten-Minute Meeting?

Tang Zichen hadn't expected Tang Zheng to show up so soon. He had hoped to finish the meeting before he returned. He wondered how he had found out about this quickly.

He looked at the door again and saw his assistant, Zhao Yu, lying on the floor, clutching his chest. 

Tang Zheng smiled slightly, showing no sign of anger or surprise. He unbuttoned his suit and walked casually towards a seat. He ignored Tang Zichen and his supporters, who were staring at him with shock. He spoke in a clear and cold voice, "Apologies for my late entry. I got a late notice"