In the fifteenth year of the Republic of China, the Su family of the Xiangdao family in Gusu was in a deep inheritance crisis. In order to protect the century-old incense recipe, the young master Su Yanqiu was forced to get involved in games with foreign companies and politicians, and even found evidence that her aunt was colluding with foreign enemies.
Xie Yungui, the young master of the Xie family who returned from studying abroad, looks as gentle as jade, but in fact he approaches the Su family to avenge his father. From the confrontation between the two when they first met at the Xiang Hui, to the life-and-death protection during the dock riot, the two gradually uncovered the dust-laden family secrets between contracts and calculations.
When the phoenix blood bracelet and the jade pocket watch are put together, the four characters "Yungui Yanqiu" left by the ancestors are revealed, and the truth about the murder of the past comes to light. The perfumer in the smoke and the noble prince holding the sword finally wrote a legend that spanned the feud between the incense ashes and ink marks.