During the Republic of China, Gu Qingzhou, who was proficient in martial arts, medicine and strategy, returned to Gu Mansion from the countryside in order to find out the cause of his mother's death and regain his grandfather's property. He faced many frame-ups by her stepmother Qin Zhengzheng and her daughter (such as plots to break off the engagement, religious traps, and disfigurement plots). She relied on her wisdom to resolve them one by one, and gradually gained a foothold.
On the return train, Gu Qingzhou rescued Yuecheng Marshal Si Xingpei who was assassinated, but unexpectedly formed a bond with him. Si Xingpei was attracted by the contrast between her "black-bellied little white rabbit", and although he approached her with a "grabbing" attitude, he repeatedly protected her (teaching bullies, resisting assassinations by political opponents); Gu Qingzhou used his power to disintegrate his stepmother's camp, but also resisted her feelings for him.
