Mu Qingyao, also called Yaoyao, was swapped into the Mu family at birth. The Mu parents treat her as their real daughter. She feels threatened by Xu Xinduo, so she attempts to make life difficult for Xu Xinduo. She also incorrectly believes Xu Xinduo is trying to steal her fiancé Shen Zhuhang.
One of her good friends is Lu Renjia.
One of her previous friends is Ban Banhua, but their friendship broke.