Jiang Huaixi is well versed in medicine and poison, but because of an old incident, she has spent years in disguise and hiding. Afterward, she travels alone from province to province.
Lu Yun, seeking to escape the shackles of being a shadow guard, is ordered to inspect Yuzhou.
The two meet in a mountain cave at night. Each gets what they need, and they agree to travel together.
The road ahead is long and arduous. Jiang Huaixi only wants to find her missing family.
Encroached farmland, a woman falling from a building, innocent people disappearing...
Every case that has arisen in the area seems to be connected in some way to the events of that year.
Following the clues, the two investigate with all their might, entrusting each other with their backs even as they remain wary and protective.
But as the gloom gradually lifts, Jiang Huaixi begins to lose her sense of self. Still, someone always follows close behind.
“Take a walk with me?”
“All right.”
Theme: Through every storm, I will always be by your side