Interwoven with romance, heartbreak, twists, and revenge, Meng Zhaotang, the second young miss of the Meng family, was sent to a nunnery for seven years. Afterward, her mother brought her back to the Marquis's Mansion under the pretext of bearing a child in place of her elder sister. The truth about falling into the water years ago was deliberately buried by her family, and bearing the stigma of "having a hard fate that curses her sister," she was reduced to a pawn for her sister to secure her position as the legitimate wife. Faced with familial coercion and the schemes of the Marquis's Mansion, she plots step by step to tear away everyone's hypocritical masks, vowing to reclaim the life that rightfully belongs to her.