In her past life, Shen Xingyao was used by the Marquis Manor and died a miserable death at the Prince Qi Manor. Living a new life, relying on her portable space and sharp judgment, she took back the embezzled wealth and grain, shook off the control of the Marquis Manor, and was bestowed the title of Princess by the Emperor. Later, she teamed up with Prince Qin, Shangguan Rongyuan, to investigate disaster relief grain, spies, and the old case of Guiyuntai. During the investigation, she discovered that her biological mother, Rong Xiangsi, for the sake of her own wealth, had transferred and detained her for profit, and her uncle, Feng Qingchen, was also imprisoned and made to manufacture medicine by the Master of the Guiyun Command. Shen Xingyao rescued her uncle, exposed the criminal evidence, crushed the conspiracies of the Fifth Prince and the forces of the three nations, and finally recognized her biological father, Xuanyuan Mocheng, helping the Tianqi Kingdom unify the four nations, founding the country under the title Great Xia. Afterward, she married Prince Qin and became the mother of the world.