A small border town suffered a military disaster, and three-year-old Shen Heng was picked up from the dead by an old doctor who lived in seclusion in the mountains.
After sixteen years, she never went down the mountain again.
Studying medicine, collecting herbs, testing medicines, and saving people, her world only consisted of three wooden houses, half an acre of medicinal gardens, and hundreds of miles of mountains and forests.
The master taught her all his life's medical skills, but he never taught her about human nature - because the master himself didn't want to mention it.
As a result, Shen Heng grew up into a cold, indifferent girl who was inexperienced in world affairs.
She could identify the medicinal properties of the herbs within three breaths, but could not understand a single overtone.
She can use a silver needle to bring the dead back from the gate of hell, but she doesn't know that people outside the mountain can lie to others, harm others, and kill for their own selfish desires.
Later, the master went down the mountain to travel and did not return for a long time.
And the poison accumulated in her body from years of trialling drugs could finally be suppressed no longer.
If she wants to detoxify, she must leave Yuncang Mountain and go to the world she has never set foot in.
A girl who had never even touched money stepped into a world of unpredictable people, carrying a basket of medicinal materials and an old book.
She doesn't understand anything.
But her needle was fast.
