Yu Sheng was raised as the beloved eldest daughter of the wealthy Yu family for fifteen years, living a life of luxury and privilege. However, her world collapsed overnight when a DNA test revealed she was an adopted child and the Yu family had found their biological daughter, Yu Jiaojiao. Rather than allowing Yu Sheng to search for her birth parents, the Yu family kept her bound to them, declaring that her fifteen years of care required repayment. Overnight, Yu Sheng fell from the esteemed position of the Yu family's young lady to becoming a scapegoat and a target of abuse. Yu Jiaojiao, portrayed as fragile and sickly, vented her frustrations on Yu Sheng, treating her as a disposable toy. The situation worsened when it was discovered that Yu Jiaojiao suffered from a severe heart condition requiring a transplant, and Yu Sheng was a perfect tissue match. The Yu family viewed Yu Sheng not as a daughter but as a living organ bank, planning to harvest her heart to save their precious biological daughter.
Six months later, Yu Sheng discovers she is pregnant. When she visits the hospital for a routine check-up, the doctor informs her that pregnancy contraindicates the heart transplant surgery she was scheduled for. Realizing the Yu family will force an abortion to proceed with the organ harvesting, Yu Sheng makes a desperate decision. She contacts Wen Zhuqing, a ruthless and powerful CEO from the wealthiest family in Rongcheng, with whom she had a brief, non-consensual encounter six months prior. She claims the child is his and demands his protection. Wen Zhuqing, initially cold and indifferent, agrees to help her, not out of affection, but because he needs a wife to satisfy his family's pressure for an heir, and Yu Sheng needs his power to escape the Yu family. They enter into a three-year trial marriage contract, complete with substantial financial compensation, including cash, properties, and a monthly allowance, in exchange for her compliance and the birth of his child.
The core conflict centers on Yu Sheng's struggle for survival and autonomy against the Yu family's murderous intent. The Yu family, led by her adoptive father Yu Tianhai and mother Chi Ying, along with the malicious Yu Jiaojiao, are determined to retrieve Yu Sheng and force the transplant. They attempt to kidnap her from the hospital, accusing her of organ trafficking, but Wen Zhuqing intervenes, using his legal and financial power to have the kidnappers arrested. Despite this initial victory, the Yu family escalates their tactics, hiring women to publicly smear Yu Sheng's reputation on campus, accusing her of being a homewrecker. Wen Zhuqing again steps in, publicly displaying their marriage certificate and having the accusers charged with defamation and attempted assault. Throughout these conflicts, Wen Zhuqing's attitude toward Yu Sheng gradually shifts from cold transactional detachment to protective concern, especially as he witnesses her vulnerability and resilience. Yu Sheng, initially terrified of Wen Zhuqing, begins to find safety and support in their arrangement, while also navigating the physical and emotional challenges of her pregnancy. The story follows her journey from a powerless victim to a woman who claims her agency, protected by a powerful ally who is slowly becoming something more, as she prepares to face the Yu family's continued schemes and secure a future for herself and her child.
