The heroine Su Qinghuan is the descendant of a reclusive miracle doctor. She is so skilled in acupuncture that she can revive human flesh and bones. However, due to her master's instructions on her deathbed, she vowed not to step foot in the capital or deal with the powerful. However, a sudden plague broke the peace - a rare epidemic broke out in her small town in the south of the Yangtze River, and there was a shortage of medicinal materials. The only "ice crystal grass" that could detoxify the poison was only found in the royal hunting grounds on the outskirts of Beijing. In order to save the lives of the entire town, Su Qinghuan had to break his oath and go north.
