Feng Xiaohan, the Regent Prince, is a cold and powerful figure who has been blind for some time and lives in Wangchuan Courtyard with his adopted children. His days are marked by visits to Zhaoyu Prison and an increasingly volatile temperament. One night, while suffering from insomnia, he dreams of a chubby little girl with a comically large head who calls him Father. She explains that she works odd jobs to earn money to buy medicine for his eyes, spending her hard-earned silver on blue Shuishu flowers as gifts. Initially suspecting a scam, Feng Xiaohan discovers a mysterious system interface that allows him to recharge silver coins for her. After giving her one hundred taels, he learns she used the money to buy medicine rather than spending it on herself. The little girl, whose name is registered as Feng Wuyu, becomes a recurring presence in his dreams, appearing in various outfits and bringing him flowers from her world. As their bond develops, Feng Xiaohan finds himself looking forward to these nightly encounters, and his gloomy demeanor begins to soften. He purchases clothing and items for her through the system, and she reciprocates by bringing him real flowers that appear in his room upon waking. Meanwhile, Wuyu lives in a small town with her caretakers, including a Medical Immortal and a flower-selling woman named Wisteria, who is secretly the Crown Prince. She takes on various jobs to save for her father's medicine, which costs one hundred thousand taels. Feng Xiaohan, realizing the impossibility of her earning that amount, secretly arranges for large sums of money to be placed in his courtyard for her to access. The story also introduces Jiang Gu, a melancholic young man whom Wuyu is tasked by the system to cheer up. Despite his initial hostility and refusal of help, Wuyu continues to leave gifts and medicine at his door. Feng Xiaohan's adopted daughter Gu Zhu returns from a trading trip and notices her father's improved mood since the little girl appeared. She helps him shop for gifts for Wuyu, and Feng Xiaohan awkwardly inquires whether Wuyu misses him during her absences. When Wuyu leaves for several days on a medical mission with the Medical Immortal, Feng Xiaohan experiences a profound sense of loss, becoming irritable and distracted. Gu Zhu reassures him that Wuyu is simply busy earning money for his medicine. The narrative weaves together the parallel lives of the blind prince and the industrious child, connected through dreams and a mysterious system, as their relationship deepens despite the barriers between their worlds.
