The third son of the Pei family, known as the Third Young Master. He is the current head of the Pei family and holds final authority over all family matters, including Pei Liuyu's marriage. He is refined, famously talented, and rose rapidly to become a high-ranking minister. During the rebellion, he displayed strategic brilliance by playing a melody on his zither that caused enemy forces to crumble and defect. The Pei family began to rise again under his leadership after losing many clansmen during the imperial civil war.