Meng Dehai's daughter is childhood sweethearts with An Xin. She has a cheerful and independent personality.After graduate school, he left Jinghai City for Beijing and started working as a journalist.She helped An Xin undercover many times, and she and An Xin had a crush on each other. They were originally going to be together, but because of the influence of the evil forces, An Xin had no choice but to break up with her.Later, out of anger, he married Yang Jian, the former captain of the anti-drug detachment, and they had a child, Doudou.