Gu Hong, the Marquis Weiyuan, is the head of the Gu family and father of Gu Yanzhi. He lives apart from the manor and initially stays out of domestic affairs. When the scandal escalates, he meets with Shen Weiyang, recognizes her firmness, and agrees to grant a divorce within three days. However, he later yields to his son's opposition and tries to impose a letter of divorce instead. He ultimately signs the divorce letter and offers compensation, showing a pragmatic and authoritative nature.
