Also known as Madam Gu, Gu Nanyin's mother. The eldest daughter of the Su Family, once celebrated as talented and beautiful. She married Gu Yuanyao against her family's wishes. Gu Yuanyao has favored Concubine Yun for years, never entering her courtyard, and plans to use Gu Nanyin to obtain information from the Regent. She has long lost hope in him and seeks revenge. She is now married into the Gu family but remains connected to the Su family.
