Jiang Wanning's maternal grandfather, also called Old Grand Tutor Zhou. He is a Grand Preceptor and a former teacher of the current Emperor (formerly the Crown Prince). He knows the secret truth about Pei Yanchuan's true identity as the Duke of Ying's heir. He is a man of integrity, belonging to the Pure Stream faction, and supports Jiang Wanning's marriage choice because he believes in love over duty.
