The Princess Royal, Gu Yan's mother. She manages the household accounts using an abacus. She is kind and welcoming toward Yun Xiangye and her granddaughter Nuonuo. She offers Yun Xiangye the task of managing shop accounts in Chang'an and agrees to have a small stove installed in Qingfeng Garden. She tells Yun Xiangye not to bother with formal morning respects in the future due to the cold weather.