In the late autumn of the seventeenth year of the Republic of China, the Xie family was brutally wiped out. Xie Wan Ning, who possessed the secret technique of distinguishing traces of incense from her ancestors, came to the Governor's Mansion with half a burnt incense tablet.
A three-year contract sealed the deal: she used her unique incense skills to solve the backlog of unsolved cases, and exchanged files to find out the truth behind the family's murder; Lu Chongjin, the military governor, used her incense skills to investigate old cases and clear away family grievances.
The two established a clear boundary through a contract. They were originally trading partners who each took what they needed. However, mysterious coffin burials and disappearances in ancient workshops emerged one after another. Ji Lin, the former best friend, hid in the shadows. One murder case after another revealed the secrets of the family extermination and the conspiracy of the warlords in troubled times.
Purpose: Taking the turbulent times of the Republic of China as the background, using the art of incense to investigate the case, it tells the story of a small character who sticks to his true heart in a sea of blood feud, grows up between a contract of interests and a fateful love, and reflects the choices of human nature and the feelings of family and country in the turbulent era.