Obsession Turns Into Poison, Rivals Become Lovers

Stricken by a deadly poison, the protagonist finds her sworn enemy is the only cure. After defecting from the Sixth Prince's guard, she is forced to impersonate her sister and marry into the Fu family. Amidst household struggles, she faces scrutiny from her mother-in-law and challenges from her sister, while the Sixth Prince manipulates her with the poison to kill Fu Yanqing. From suspicion to being moved by her resilience, Fu Yanqing risks his life to protect her multiple times. Together, they uncover the prince's plot to seize the throne and finally break the curse. Fu Yanqing renounces his title and lives quietly with her in the common world, turning their calculated beginning into a lifelong love story.