Song Yuewan, the legitimate daughter of the Chancellor's household, was murdered in her previous life through the joint schemes of Xie Rongheng and her half-sister, Song Jiehe. Reborn, she resolves to tame this wolfhound and make him hers. Using the memories of her past life, she carefully plans every move, eliminates Concubine Bai, suppresses her half-sister, and brings Xie Rongheng under her control. As they test and protect one another, feelings gradually blossom between them. Together, they overcome assassinations, frame-ups, and treacherous political schemes. When faced with her father's rebellion and Madam Yang's attempts to frame others, they expose the conspiracies and fight back against impossible odds. In the end, Song Yuewan rewrites her fate through her intelligence and courage.