Gu Xiyuan, the legitimate daughter of the Marquis of Pingyang, had her mother donate twenty thousand taels for disaster relief, yet the Crown Prince intended to give both the title of Princess and the position of Crown Princess to her cousin Gu Qingwan, leaving her only as a secondary consort. After awakening, Gu Xiyuan emptied the Marquis's estate of its valuables, allied with the Prince of Yan, Xiao Xuan, to secure an imperial decree for marriage, and her mother took her dowry and divorced to return home. The schemes of everyone in the Marquis's estate backfired, Gu Qingwan's reputation was completely ruined, the Crown Prince ended up with nothing on both fronts, and the Marquis's estate was left with absolute nothingness. Gu Xiyuan transformed from a legitimate daughter at the mercy of others into the Princess of Yan who controls her own destiny.