The Silver Mirror Connects the Past and Present: The True Daughter of the Marquis’s Mansion is on a Winning Streak with Her Son!

Lin Shanyue, a young woman raised in the rural Crescent Moon Town by the Lin couple, discovers that her biological father is the Marquis of Northern Garrison, a high-ranking noble in the Imperial Capital. Before she can process this revelation, messengers arrive to bring her to the capital. Upon arrival, she learns the cruel truth: the Marchioness, unable to send her favored daughter Jiang Wan'er to marry the disfigured and rumored-to-be-violent Prince Regent, had recruited Lin Shanyue to serve as a substitute bride. The Marchioness had secretly brought her to the estate, renamed her Jiang Shanyue, and trained her in arts and etiquette for this purpose.

Complications arise when an elderly woman arrives at the marquis estate with a two-year-old child named Little Bao, whom Lin Shanyue had rescued years prior. A servant mishears the woman's request, spreading a rumor that Lin Shanyue already has a son. Enraged by this perceived loss of virtue, the Marchioness casts Lin Shanyue out of the estate on a freezing winter night. With nowhere else to go and unable to leave the toddler behind, she settles in a dilapidated courtyard in Guangde Ward, the poorest district of the capital, with only ten taels of silver to her name.

While exploring her new, meager home, Lin Shanyue discovers a silver mirror. To her astonishment, a young man named Huo Yi appears within it. Huo Yi is from the modern era, specifically 2024, and is the third young master of the wealthy Huo Corporation. He had been involved in an accident six months prior that left him unable to taste food, a condition doctors deemed psychological. Lin Shanyue, however, cannot see him; only Little Bao can perceive the man in the mirror. Huo Yi discovers that he can pass objects through the glass, and after witnessing Lin Shanyue's poverty, he begins sending her supplies such as rice, vegetables, and cooking oil.

The relationship between the two evolves as Lin Shanyue realizes Huo Yi is not a demon but a man from another time. She learns that he can only taste food she cooks herself, which restores his sense of taste and brings him immense joy. In return for her meals, Huo Yi provides her with modern goods, including powdered milk, refined sugar, and high-quality spices, which are unknown or rare in the Great Qian Dynasty. Lin Shanyue, utilizing her knowledge of incense making inherited from her adoptive father, begins selling imitation Suhe Incense to a local brothel, Huayue House, to generate income. She also experiments with making milk cakes using the powdered milk Huo Yi provides.

Lin Shanyue faces immediate challenges in the capital, including harassment by thugs in her neighborhood, whom she scares off with Huo Yi's help. She forms a bond with her neighbors, particularly Aunt Pang, who protect her. Meanwhile, Huo Yi investigates the Great Qian Dynasty, confirming its existence in unofficial histories and realizing the mirror connects two distinct timelines. He begins trading antiques from Lin Shanyue's time, such as porcelain plates, for modern goods, significantly boosting his family's antique business and earning his grandfather's approval.

As Lin Shanyue establishes her small business, she navigates the complexities of the imperial capital's social hierarchy. She encounters the lame steward from the Marquis's estate, who is searching for her, indicating that the noble family has not forgotten her. Lin Shanyue resolves to sever ties with the Jiang family and build a new life under her own name. She plans to expand her food business, using Huo Yi's advice on branding and marketing to elevate the perceived value of her milk cakes. The story follows her determination to survive and thrive despite her fallen status, supported by her unlikely ally from the future, while the political and personal dangers from her past loom in the background.