Dying Tragically in Childbirth, the Reborn Legitimate Daughter Slaughters the Entire Marquis’ Mansion

Xia Jianxi, the legitimate daughter of General Xia Maoshan, is six months pregnant when she discovers the devastating truth about her marriage to He Lanci. For years, she believed He Lanci was her devoted childhood sweetheart, but on a blizzardy night, she overhears him mocking her from the study. He reveals that their entire relationship was a calculated scheme to destroy her reputation so he could marry into the Prince's Mansion while using her family's immense wealth to cover his own debts. The abduction that ruined her name was orchestrated by He Lanci himself, and he plans to murder her unborn child, dismissing the baby as a bastard whose death can be easily concealed. Crushed by betrayal, Xia Jianxi is dragged into a dark cellar where she is forced to give birth prematurely. He Lanci then kills the infant and attempts to strangle her, but just as she dies in despair, she is rescued by an unknown assailant and awakens to find herself reborn.

Xia Jianxi opens her eyes to find herself back on the night of the Flower Festival, the very day she was originally abducted. Realizing she has returned to the past, she immediately kills one of her pursuers with a golden hairpin and flees. Instead of running toward safety, she makes a desperate gamble by heading toward the site of an assassination attempt on Song Taifei, the mother of the powerful Prince Regent, Yi Zichuan. She throws herself in front of an assassin's blade to save Song Taifei, sustaining a fatal wound. Yi Zichuan, who has been investigating a corruption case involving flood relief silver and the Marquis Yongchang Estate, arrives with his guards and rescues her. Recognizing her value as an informant who knows secrets about his investigation, he agrees to a partnership: he will clear her name and protect her, and she will provide him with information about the Marquis Yongchang deficit.

Xia Jianxi recovers at the Prince Regent's mansion and demands that Yi Zichuan publicly announce her heroism to restore her reputation before returning to her family. Upon her return, she finds the Yong'an Wangfu has arrived to break off her engagement to Kang Muze, the Heir, citing her ruined reputation. They intend to replace her with her cousin, Xia Yuruo, who has been secretly involved with Kang Muze. However, Song Taifei arrives with Xia Jianxi, publicly confirming that the General's daughter saved her life and that the rumors of her impropriety are false. The engagement is formally annulled when Xia Maoshan tears up the marriage contract, refusing to let his daughter marry into a family that despises her.

The truth behind the abduction begins to unravel as Yi Zichuan brings in Kang Muze's servant, Shu Tong, who confesses that he forged the letters inviting Xia Jianxi to the festival. He reveals that Xia Yuruo's maid, Yuting, bribed him with fifty taels of silver. Yuting is brought in and, under torture, admits to her role but claims she acted alone out of jealousy. However, Yi Zichuan notices that Yuting possesses the stubborn resilience of an assassin, suggesting she is more than a simple servant. As the investigation deepens, it becomes clear that the conspiracy extends beyond personal vendettas, linking the Xia family's internal betrayals to the larger rebellion threatening the empire. Xia Jianxi, no longer the naive girl she was in her first life, aligns herself with Yi Zichuan to expose the corrupt factions within the court and her own family, setting the stage for a fierce battle for justice and survival.