A First-Rank Minister and Grand Tutor of the Zhou Kingdom, and Cao Ming's mother. She was once Xu Chen's teacher but their relationship broke down completely due to Xu Chen's reckless and tyrannical behavior. She fell ill from the stress caused by Xu Chen and nearly resigned, only staying in office after the Emperor's repeated persuasion. She now attends court only on the first day of the month. She warned her daughter not to harbor illusions about Xu Chen and stated that the Cao family will not get involved with the Crown Princess again, emphasizing that the teacher-student bond between them has been severed.
