Pei Du's younger half-sister and the only daughter of Princess Dengguo. She was granted the title of County Princess by the Emperor and raised in boundless indulgence. She is proud, arrogant, and looks down on other young ladies and servants. She punished Xie Zhi for allegedly stealing practice manuscripts and was furious when Xie Zhi ran away afterward. She wears golden phoenix hairpins adorned with dangling pearls.