Body-Snatched and Made a Concubine, I Stole the System and Staged a Counterattack

Lin Ruochu, the daughter of a prestigious general, has spent the last three years trapped inside her own body. Since her coming-of-age ceremony at age fifteen, a female entity from another world has possessed her, forcing her to act as a reckless concubine to the Heir Apparent of the Yong'an Marquisate, Shao Mu. While the entity controls her, Lin Ruochu is a passive observer, forced to watch as the woman destroys her reputation, alienates her family, and humiliates herself in a desperate attempt to capture Shao Mu's heart. The entity, referred to as a "System" user, is obsessed with Shao Mu and views Lin Ruochu's original life as an obstacle to her romantic goals. Lin Ruochu’s family, led by her furious father, disowned her after she abandoned her engagement to Li Xuan and entered the marquisate as a low-ranking concubine without proper rites.

The central conflict escalates when the entity, enraged by Shao Mu’s decision to take a pregnant concubine, Sun Yiniang, into the household, loses control during an intimate encounter. In the struggle, Shao Mu is pushed from the bed and suffers a facial injury. Fearing severe punishment and the return of the entity, Lin Ruochu manages to seize temporary control of her body. Instead of begging for forgiveness or attempting to soothe Shao Mu, she makes a decisive break from her past behavior. She kneels outside the residence of the Marchioness, Zheng Shi, for four hours in the freezing night, voluntarily confessing to three major offenses: entering the household without proper status, disrupting the inner quarters, and injuring the Heir Apparent.

Lin Ruochu requests punishment by retiring to the White Cloud Temple to pray and atone for her sins. This move surprises everyone, including Shao Mu, who is accustomed to her dramatic tantrums and clingy behavior. The Marchioness, eager to remove the source of discord from her household, agrees to send her to the temple. Shao Mu attempts to intervene but is thwarted by Lin Ruochu’s sudden humility and propriety, which contrasts sharply with the woman he thought he knew. She departs for the temple with only her youngest maid, Jinyu, leaving behind her loyal maid Jinque and the chaotic life she previously endured.

At White Cloud Temple, Lin Ruochu’s situation changes dramatically. She seeks out a Taoist priest named Miaoheng Zhenren, whom she had met as a child. Although the priest is absent, her disciple, Xuan Ling, provides a wooden box containing a vajra bodhi bracelet. This artifact suppresses the entity’s ability to control Lin Ruochu’s body, granting her autonomy for the first time in three years. The entity screams in frustration, unable to break the seal, while Lin Ruochu experiences a profound sense of liberation. She realizes that the love Shao Mu showed the entity was manipulative and that her own suffering was self-inflicted due to the entity’s actions.

Shao Mu, disturbed by Lin Ruochu’s drastic change in demeanor, visits the temple. He expects her to be weeping or resentful, but she treats him with cold politeness, referring to him formally as "Heir Apparent" and urging him to return to his pregnant concubine. This detachment confuses and irritates him, as he is accustomed to being the center of her emotional world. Meanwhile, Lin Ruochu begins to reclaim her physical strength, practicing martial arts and spear techniques she learned in her childhood at the General Residence. She also discovers that the entity feels physical pain, which she uses to her advantage by exercising rigorously to torment her intruder.

The story direction shifts as Lin Ruochu resolves to rebuild her life on her own terms. She plans to use her time at the temple to strengthen her body and mind, preparing for a future independent of the marquisate and Shao Mu. The entity continues to rage impotently from within her mind, while Lin Ruochu remains calm and focused. She receives a message from the missing Miaoheng Zhenren, hinting at a deeper destiny and a path to true freedom. As Shao Mu struggles to understand the woman he thought he knew, Lin Ruochu begins to forge a new identity, shedding the role of the neglected concubine and reclaiming her dignity as the daughter of a general.