The heroine Su Qingyue was the eldest daughter of the Duke of Zhen in her previous life. She mistakenly trusted her concubine Su Qingrou and the scumbag third prince Leng Moyu. Not only was she jointly betrayed by the two, but she also witnessed the whole family of the Duke of Zhen being slaughtered and died tragically in the gate tower with hatred. Once reborn, she returned to the eve of her wedding ceremony, lost her gentleness and innocence in her previous life, and determined to rewrite the tragedy of her family and herself. She took the initiative to approach the regent Leng Jue, who was rumored to be ruthless and bloodthirsty, powerful but suffering from leg problems, and used marriage as a bargaining chip to use his immense power to avenge her.