Antagonist, illegitimate half-sister of Liu Qingxu brought home by the Protector General six months after the original mother's death. Arrogant, scheming, and ruthless. Poisoned the original Liu Xiao to become the sole daughter. Demanded Liu Qingxu either become a nun or reject the Crown Prince's proposal within three days. Described as beautiful but with narrowed, contemptuous eyes and an overbearing aura.