C472 Slip of paper

The room was small, and one could see the whole of it with a single glance. There was no one on the bed. There was a note on the table. What was written on it?

He picked up the slip of paper and looked at it carefully. It read: Ling Er will not tell Master about this, do not worry about Ling Er. Even if Ling Er does not live for himself, he will live for others