C1739 Sleep

Yang Tao came to Serenity's office, it was the largest office in the company. After entering the office, he saw that Serenity was busy, with a pair of black-framed glasses on her face, giving her a special feeling.

"If you're not polite, why don't you knock at the door?" Quiet And Steadfast said without even raising his head.

"I still need to knock on the door?" Yang Tao asked