Sima Yuntian didn't go out for a whole day, and it was getting dark. Sima Yuntian was going to ask the waiter to send some food. Suddenly there was a knock on the door.

Sima Yuntian frowned. He told the waiter that he could not disturb himself no matter what, so the person who would be the waiter was not sure? Who knows he's here?

Sima Yuntian clenched the scalpel he had just used into his hand, walked to the door and said, "who?"

there was no answer outside the door, but the knock was still coming, and it was more and more urgent. At least, I came to the...