C725 Everything Was Clear

"Secretary Dong, please open the door."

A man's voice was polite and his tone was calm, but there was a faint command in his voice.

The voice alarmed the people inside. Yang Zhanguo frowned slightly. He didn't expect that someone would come and cause a ruckus in the Yang Consortium's building.

"Please open the door!"

In less than two seconds, the voice started to repeat again