C623 Protect the Weak!

Liu Yun could tell from Cao Yuanwu's heavy heart that he was worried about something. He could not help but hold his arm and asked, "What's wrong? Are you in a bad mood?"

The two of them had known each other for so many years. Even the slightest detail could be seen in each other's minds.

"It's nothing. I just thought of some things from the past