After Lu Mingyu's parents died in a car accident, her uncle, Lu Qiuliang, placed her under house arrest and forced her to hide her talents. By chance, she meets Duan Xiuming, the second young master of the Duan family of Xiangjiang, a powerful king operating behind the scenes. Captivated by her unique aura, Duan Xiuming decides to protect her by every means possible, becoming the sharp blade she wields on her path to revenge. This short drama is adapted from the novel A Good, Obedient Girl by Wo Sha Fei Ku Xin, featured on the Tomato Novel Peak Ranking.