My Arch-rival’s Biological Son Transmigrated Back

Li Qing is a top-performing senior high school student in Wucheng who carries the heavy burden of a fractured family. Her father, Li Jianhui, is an alcoholic gambler who squandered the family savings, leading to her mother Chen Ruohua’s late-stage cancer diagnosis. Li Qing balances rigorous studies with multiple part-time jobs to pay for her mother’s treatment, while harboring a deep-seated rivalry with Yuan Tingshen, a wealthy transfer student who consistently ranks first in their grade. Their animosity stems from Yuan Tingshen’s perceived arrogance and privileged background, which Li Qing resents as she struggles against poverty.

The narrative shifts dramatically when Yuan Miao, a young man claiming to be Li Qing’s biological son from twenty years in the future, appears at her school. Having traveled back in time after an accidental fall, Yuan Miao insists Li Qing is his mother. Initially dismissing him as a scammer, Li Qing takes him to the police, but with no records of his existence, she is forced to take temporary custody. Yuan Miao seamlessly integrates into her life, revealing intimate knowledge of her future family and allies, including Zhao Wenyi and Uncle Jiu, who run the Miye Bar in the Ninth Street district where Li Qing works.

Simultaneously, Li Qing’s academic life is disrupted when her teacher assigns Yuan Tingshen as her desk mate. Despite her attempts to maintain distance, Yuan Tingshen becomes increasingly intrigued by her cold demeanor, unaware that she views him solely as a rival. Meanwhile, Yuan Miao uses funds from his future father’s bank card to support Li Qing’s family, paying for his grandmother’s hospital bills. This financial activity catches Yuan Tingshen’s attention, prompting him to investigate the teenager who resembles him and knows his family’s private details.

Li Qing’s world expands further when she encounters Shen Lanting, a wealthy woman suffering from mental health issues and targeted by the Light Righteousness Society, a local underground group. Li Qing’s martial arts skills impress Shen Lanting, who hires her as a bodyguard. This new role exposes Li Qing to the dangerous underworld connections of her mentor, Uncle Jiu, and forces her to confront the violent reality of her father’s past influences. Yuan Miao, aware of future tragedies involving burns and amputations affecting his mother and her friends, strives to alter fate while navigating his complicated relationship with his young mother.

As the story progresses, the parallel timelines converge. Li Qing discovers the truth about Yuan Miao’s origin through his uncanny resemblance to her and his knowledge of events yet to unfold. Her relationship with Yuan Tingshen evolves from hostile rivalry to cautious curiosity, especially as he investigates the same financial anomalies Yuan Miao is creating. Li Qing must protect her mother from her abusive father while managing the chaotic presence of a son from the future, all while preparing for the college entrance exam that will determine her destiny. The narrative sets the stage for Li Qing to reconcile her past trauma with a future she is actively reshaping, bridging the gap between her impoverished present and the prosperous, complex life Yuan Miao remembers.