During the Republican era, a family empire famous for making the best fragrances and incense must guard against those who are out to steal their secret recipes. Ning Zhiyuan is the sweet young master of his family’s fragrance empire. An Leyan is a determined young woman who is out for revenge against the Ning family. Zhi Yuan falls in love with Le Yan, but she only wants to infiltrate Ning Zhiyuan’s family to steal a valuable perfume formula. Leyan’s true heart is drawn toward An Yichen, an inspector. But Xiao Hui, the daughter of a Japanese imperialist, is determined to capture Yichen’s heart at all costs. Can Zhiyuan protect his family’s livelihood and his own heart?