Female supporting character, Gu Ming's third sister, 26 years old with late-stage A-rank mental power, the highest among the Gu sisters. She is straightforward and stubborn with a sharp tongue. She initially questioned Chu Ning about Li Huan getting the Dew Pill patent authorization. She excitedly suggested Chu Ning register Grand-Grandmother as her mentor at Imperial Star Military University because she wants to be Chu Ning's senior sister.