Transmigrated into the Farmhouse Favorite: The Supporting Character Is Max Level

Su Wan, a skilled physician combining traditional Chinese medicine with modern expertise, dies in a car accident and transmigrates into the body of a fictional character from the novel Dominion. She awakens as Su Wan, the legitimate eldest daughter of a marquis, who has been forced into a miserable marriage with Gu Huaizhi, a sickly and impoverished scholar. The original Su Wan was a vicious cannon-fodder villainess who, after her father stripped her of her betrothal to the Crown Prince to benefit her stepsister, was coerced into marrying Gu Huaizhi. Consumed by hatred and despair, the original Su Wan attempted to poison Gu Huaizhi and sold his younger siblings to human traffickers. This cruel act led to the children's deaths in a brothel, the suicide of Gu Huaizhi's mother, and Gu Huaizhi's transformation into the novel's ultimate villain, who eventually exacted a gruesome revenge on Su Wan. Now inhabiting this body moments before the poisoning attempt, Su Wan must navigate a deadly fate she barely understands.

Upon regaining consciousness, Su Wan immediately recognizes the critical juncture in the narrative. She bursts into the room just as Gu Huaizhi is about to drink the poisoned medicine, knocking the bowl from his hands and spilling it. Gu Huaizhi, weak but dangerous, glares at her with undisguised loathing, while Su Wan struggles to maintain the arrogant persona of the original owner to avoid suspicion. She masks her true intentions with a mocking tone, claiming she does not want to become a widow too young, though she internally despises the original Su Wan's cruelty. Her attempt to bribe Gu Huaizhi with silver fails when she realizes she possesses no money, having brought no dowry to the marriage. The situation is further complicated by the presence of Mother Gu, Gu Huaizhi's widowed mother, who is unexpectedly kind and protective, treating Su Wan with a warmth that the original Su Wan never deserved or appreciated.

The tension escalates when the trafficker, Liu Lao Liu, arrives at the gate demanding the children Su Wan had agreed to sell. The original Su Wan had taken an advance payment to sell Gu Jingyun and Gu Baozhu into prostitution, using the money to buy the arsenic intended for Gu Huaizhi. Su Wan, horrified by this chain of events, decides to intervene. While Mother Gu attempts to protect the children with a hoe, Su Wan takes the weapon, revealing hidden martial arts skills inherited from her grandfather. She confronts the traffickers with brutal efficiency, incapacitating Liu Lao Liu and terrifying his accomplices into retreating. Her display of violence and cold authority shocks everyone present, including Gu Huaizhi, who watches her with a mixture of confusion and wariness.

By defeating the traffickers, Su Wan alters the trajectory of the original plot. She has saved Gu Huaizhi from poison and protected his siblings from a fate worse than death, yet she remains trapped in a hostile environment. Gu Huaizhi, though physically frail, possesses a sharp and suspicious mind. He observes Su Wan's changed behavior, noting the discrepancy between her violent actions and her previous cruel demeanor. Su Wan is acutely aware that she is walking a tightrope; any slip in her performance could reveal that she is not the original Su Wan. The story follows her efforts to survive in this new reality, managing the delicate and dangerous relationship with Gu Huaizhi while dealing with the aftermath of the original character's sins. She must reconcile the kindness of Mother Gu and the vulnerability of the children with the looming threat of Gu Huaizhi's future vengeance, all while hiding her true identity and medical knowledge in a world where she is initially viewed as a villain.

As the immediate crisis with the traffickers passes, Su Wan finds herself in a precarious position within the Gu household. Gu Huaizhi's gratitude is absent, replaced by a cold calculation as he tries to understand the woman who has suddenly become both violent and protective. Su Wan, meanwhile, is driven by the need to prevent the tragic ending that befell the original character. She begins to use her medical expertise to treat Gu Huaizhi's chronic illness, a gesture that further confuses him. The narrative explores the shifting dynamics between the two, as Su Wan attempts to dismantle the hatred that defined their original relationship. She faces the challenge of earning trust in a family that has been broken by poverty and loss, while Gu Huaizhi struggles to reconcile his deep-seated resentment with the unexpected care he is receiving. The story sets the stage for a complex evolution of their relationship, moving from enmity toward an uncertain alliance as Su Wan works to rewrite the doomed fate assigned to her by the novel's plot.