The Crown Prince hasn’t let go of his grudge yet, while the Crown Princess is already showing her pregnancy.

Dou Wenyi, an adopted daughter of the prestigious Dou family, endures a lifetime of abuse and betrayal, branded as a "star of disaster" by her own relatives who favor her adopted sister, Dou Mingyan. Her life unravels when her fiancé, Xie Guidu, sacrifices her to the Northern Di barbarians to save the capital, revealing that his true love has always been Mingyan. After suffering torture and death at the hands of the enemy, Wenyi awakens in her body years earlier, reborn to the moment she is falsely accused of losing her virtue after a temple abduction orchestrated by Mingyan. Armed with memories of her tragic past, she resolves to dismantle the lies that have destroyed her life and escape the fate of being a political pawn.

Upon her return, Wenyi refuses to play the role of the submissive victim. When Xie Guidu arrives to propose marriage, believing she will accept him as her only salvation, she publicly rejects the union, exposing the hypocrisy of his "devotion" and demanding an annulment. Her family, desperate to maintain the alliance with the powerful Marquis Ningyuan's household and protect Mingyan's position as the Crown Princess, pressures her to comply. However, Wenyi is undeterred. She seeks out Zhang Chengxian, a notorious playboy she once clashed with, to help her enter the imperial palace as an Imperial Pharmacist, a path that offers both independence and a means to prove her chastity through strict selection exams.

Her plan leads to a dangerous encounter with Pei Siyan, the Crown Prince, who is secretly suffering from headaches induced by a toxic substance. Wenyi recognizes him as the man who abducted her in her previous life, yet she sees an opportunity. Using her knowledge of medicine and acupuncture, she alleviates his pain, bargaining for her life and freedom. Pei Siyan, suspicious and ruthless, forces her to sign a false confession implicating her father in bribery, holding her family hostage to ensure her silence. Despite the threat, Wenyi agrees, realizing that aligning with the Crown Prince is her only leverage against a court that seeks to discard her.

Back at the Dou residence, Wenyi continues to thwart Mingyan's schemes. When Mingyan frames her for poisoning the family's prized koi fish and causing illness to a cousin, Wenyi does not remain silent as she did in her past life. Instead, she demands an investigation, exposing the tampered fish food and the negligence of the servants. Her father, Dou Bochang, initially sympathetic due to a favor owed by the Zhang family for Wenyi's rescue of his nephew, sides with her, humiliating Madam Gu and exposing the family's complicity in the cover-ups. Wenyi moves into her grandmother's courtyard, reclaiming her dowry and preparing to sever ties with a family that has consistently sacrificed her for Mingyan's benefit.

Xie Guidu, confused by Wenyi's sudden transformation and rejection, becomes increasingly obsessed with understanding her. He realizes that his dreams of a tender marriage were projections, and the real Wenyi is sharp, defiant, and indifferent to his affection. Meanwhile, Pei Siyan watches Wenyi from the shadows, intrigued by her resilience and medical skills. As the Northern Di threat looms and court politics intensify, Wenyi navigates a treacherous path between the manipulative Dou family, the scheming Crown Prince, and the remorseful yet misguided Xie Guidu, determined to carve out a destiny that belongs solely to herself.

The story culminates in Wenyi's successful entry into the palace, where she begins to build a new identity separate from her family's shadows. Her relationship with Pei Siyan evolves from one of coercion to a complex alliance, while Xie Guidu struggles with his growing realization that he may have lost her forever. As the political landscape shifts with the approach of war, Wenyi uses her position and knowledge to protect those she cares about and punish those who wronged her, setting the stage for a confrontation that will determine the fate of the Dou family and the imperial court.