Modern special agent Shen Anruo dies and time-travels to become the legitimate daughter of the Nanzhao Minister's estate. Betrayed and poisoned by her husband and adoptive sister on her wedding night, she fights back using modern methods and a spatial golden finger, taking back her dowry and emptying the marquis estate. Entering the palace to beg for peace marriage, she is titled Princess Huangyi. She meets Shang Xuanche, the Crown Prince of Tianyuan (under the alias Lu Jinye), and they develop mutual affection while hiding their identities to test each other. Having survived assassination and poison crises, she exposes her spatial ability to force back enemies, finally uncovering the disguise, loving each other sincerely, breaking conspiracies together, and returning to Tianyuan to finally become a wedded couple and start a new chapter.