In her past life, Lin Xueyi was conspired against by her childhood sweetheart Wei Ningzhou and her concubine-born younger sister Lin Ruzhi, who used her to pay off mountain bandits' gambling debts, and was then starved to death. Wei Ningzhou falsely claimed to be of imperial blood, enjoying glory and wealth with her younger sister. Reborn on the day of her grand wedding, she stuffs her younger sister into the bridal sedan chair to substitute in marriage, exposes their illicit affair, uses her father's hand to wipe out Qinglong Mountain and obtains the evidence of Wei Ningzhou colluding with the mountain bandits, and joins hands with the crown prince to verify blood publicly and expose his fake imperial prince identity. In the end, Wei Ningzhou is imprisoned and sentenced to be beheaded, and Lin Ruzhi is detained along with him. With her great vengeance avenged, she refuses to stay in the capital, and with mutual trust with the crown prince, walks toward a new life.