Also known as Chancellor Ye, he is the Crown Prince's grandfather and a powerful court official who has stood firm through the storms of two dynasties. He is over seventy years old and his health is failing, with poor constitution that causes violent coughing fits when agitated. He possesses vast knowledge, extraordinary talent, and worldly wisdom. He deeply despises his grandson the Crown Prince, calling him an empty vessel and useless mediocrity, but continues to support him for the sake of the Ye family legacy. He had planned to win over Pingyuan Houfu but their daughter married into Prince Rui's mansion instead.