**Fateful Reincarnation**: In order to break the royal curse, the genius perfumer Lu Heng accidentally triggered a time and space vortex while mixing cold scented pills, and his soul traveled to modern times to become a researcher in the perfume laboratory.
- **Mirror Life**: The modern laboratory director Shen Yu has the same appearance as the ancient Nine Princes. The experimental assistant Su Tang is actually the reincarnation of the personal maid in the previous life. The relationship between the three people is entangled again in the mist.
- **Curse of Incense**: The missing dipterocarp in the recipe of cold incense pills caused a series of modern murders. Garo incense that was burned in ancient times reappeared in modern times, pointing to the truth about the murder case of the Perfumery Department a hundred years ago.
- **Time and space choice**: When the modern incense competition final night encounters a time and space shock, Lu Heng must make the final choice between saving the life of his lover and repairing the fault in history.
