Ji Wan, an online suspense writer, suffered from negative reviews for his new work due to his shortcomings in medical knowledge, and was forced to go to the isolated ancient town of "Yutang Town" to collect information. After an accidental fall into the water, she was rescued by Ning Yutang, an orphan from a family of traditional Chinese medicine. The two girls, strangers to each other, met for the first time in an old medical clinic, but they felt an inexplicable resonance deep in their souls.
Ning Yutang is like a Chinese medicine that has been sealed for a long time - cold and restrained on the surface, but the mysterious medical skills that can change the color of silver needles are hidden in her fingertips; Ji Wan is like strong wine used as medicine, running rampant but always able to resolve the crisis when she needs it most. When Ji Wan observed and recorded every detail of the Ning Family Medical Center for her writing, she gradually discovered many strange things hidden in this century-old house: the medicine cabinet that changed color when she was young, the herbs in the backyard that glowed late at night, and Ning's father's excessive nervousness about the ancient ancestral book.
A landslide on a rainy night caused the two girls to interlock with each other while treating the wounded. Under the moonlight, the temperature of Ning Yutang's application of medicine to Ji Wan's cervical vertebra was hotter than any confession. Just as feelings were secretly brewing, Ji Wan accidentally discovered an old and yellowed photo - Ning Yutang's mother who died young in the photo completely overlapped with the background of the only photo taken from her childhood in the orphanage. As the investigation deepens, the truth about the hospital fire twenty years ago emerges like poison ivy: they are probably twin sisters who were deliberately separated.
When a pharmaceutical conglomerate framed the hospital for stealing a secret recipe, fate set a final test for the sisters. At the intersection of ancient medical skills and modern wisdom, the unspoken love will eventually turn into a medicine to save each other - it turns out that the lotus root silk growing out of the most painful bone fractures can best heal the old wounds deep in the soul.
