Yang Lanlan was stunned: "Cold son, you..."

Hanzi smiled and said, "I went to BJ on New Year's Day. I met your brother."

Yang Lanlan knew that if it was about her brother Yang Zhongjiang, it must be about state secrets, so she did not ask how Hanzi saw Yang Zhongjiang, but the brother added a mystery to her invisibly. She said softly, "You all know about my sister?"

Hanzi smiled and said, "Yeah, you know, my sister was still a student of B University. I used to lie to me about graduating from secondary school and so on. It's hard for me to hide it."

Yang Lanlan said, "My...