C76 I have no certificate

Half an hour later, everything came to an end. Cao Ziyang was bathing in the bathroom when Wu Xiaoyue, who was outside, suddenly shouted: "Ziyang, your phone is ?."

Cao Ziyang said, "Help me bring it over."

It was sent by Bai Chunni. Bai Chunni said that sshe had to pay back the debt, otherwise, he would never be able to write off the debt. What kind of debt do you owe