Twin heroines are reborn together, their destinies opposed and conflicts reaching a boiling point. In their past lives, legitimate daughter Zhu Yingxue married Prince Chen, ending up a widow; concubine-born daughter Zhu Qingan endured until she became a noble lady, only to exhaust her life. Reliving their lives, Zhu Yingxue publicly rushes to marry the poor scholar Zhou Huaian, while Zhu Qingan takes on the marriage engagement of Prince Chen's heir, Gu Beixing. Zhu Yingxue sinks deep into the quagmire of the Zhou family, constantly stirring up trouble and rebellion, and is eventually sent into exile. Zhu Qingan assists her husband in pacifying the northern border, establishes schools for women, receives the title of a first-rank noble lady, and becomes the greatest female teacher in the world.