Fragrance talent Li Yusha possesses a special gift for distinguishing scents. She discovers Zhou Ze and Li Mo's ambiguous affair, and that they covet her family's ancestral fragrance manual. On the grand wedding day, she uses fragrance as proof to publicly expose their entanglement, causing an uproar among the crowd. The frail young commander Zhou Jingchen steps forward to protect her. Through various twists and turns, Li Yusha and Zhou Jingchen become husband and wife, only to discover that he has been suffering from a strange poison for years. Following the fragrance clues step by step, she clears away heavy fogs and brings punishment to the malicious schemers. In the end, she retrieves her mother's legacy and cherishes and accompanies Zhou Jingchen through all their hardships.