Cao posted " I wish that a kind-hearted person could buy me, so my mother can undergo the operation. After the transaction, I am willing to work at the will of the buyer in return. I will do whatever the buyer asked me to do. I never go back on my word. Everything I said is true. I will sell myself to the highest bidder."
Fortunately Cao and her mother was saved by a generous person who saw the advertisement and agreed to help her mother's treatment. "It has been settled. She doesn't have to sell anything now."