Xue Yan, the third young lady of the Marquis's household, was poisoned at the Crown Prince's coming-of-age ceremony. She was lucky enough to be saved by the Divine Healer Valley, where she spent eight years in seclusion learning medicine. To uncover the truth, she returns to the capital, only to discover that Wei Xingyang, who once promised to return and marry her, is already betrothed to the Prime Minister's daughter. Their past affection has vanished like a bubble.
While investigating the case, Xue Yan repeatedly receives help from Prince Rui, Xiao Yanning. He has wanted to protect her since they were young, and has watched over her in silence for years. Now he stands firmly by her side. As the investigation deepens, Xue Yan discovers that the poisoning case is closely tied to the Prime Minister's household, whose power reaches across the court. The case leads to a series of schemes involving the use of medicinal herbs from the imperial pharmacy to make “Bone-Chilling Powder,” the illegal sale of government salt, and more. She was merely an accidental victim of the power struggle.
With help from her senior fellow disciple at the Benevolent Medicine Hall and amid the undercurrents at the Imperial Medical Bureau, Xue Yan uses her intelligence and medical skills to gather evidence step by step, supported by Xiao Yanning. In the end, she exposes the crimes of the Prime Minister's household and its allies, clearing her name at last. Having weathered many storms, Xue Yan sees people clearly and confirms her own feelings. She and Xiao Yanning, who has always protected her, finally marry and begin a peaceful, happy life together. This story weaves together mystery, political intrigue, and tender romance, showing how the protagonists grow and stand firm in the face of adversity.
A very fascinating book!