On the eve of her rebirth, Shen Qingyue, the legitimate daughter of Dingbei Hou Mansion, was tricked by her concubine Shen Yuefu and her stepmother in her previous life. She was accused of collaborating with the enemy and died by drinking poison. In this life, she used the memory of her past life as a blade to quietly expose the hypocritical mask of her concubine, disrupt her stepmother's vicious plot, and protect her younger brother and grandmother in the whirlpool of house fighting. She even unexpectedly joined forces with Xiao Chengyu, the prince of General Zhenbei, whom she had mistakenly recognized as her marriage partner, to uncover the court conspiracy behind the massacre that year. She finally cleared her grievances, helped the family reestablish the capital, and made a sincere promise to each other with Xiao Chengyu. There is no golden finger in the whole process, it is all based on wits and insight into human nature, and the exciting points focus on the precise counterattack of "karma and retribution in the past life and the present life".