Princess Yuanyuan (played by Miriam Yeung) is the emperor's long-awaited daughter, but the princess is born with a very unpleasant body odor, and many imperial doctors cannot solve this problem. No one wants to be with the princess since she was a child. Seeing that the princess has reached the age of marriage, the emperor announced that he would marry the one who can successfully cure the princess's disease. Shen Mengxi (played by Richie Jen) is a poor gardener who tries hard to compete with other divine doctors, but the chief imperial doctor (played by Kenny Bee) makes things difficult for Mengxi and uses tricks to make him lose in order to let his apprentice win. He allows him to continue researching new drugs to help the princess. He meets the fish seller Hanxiang (played by Miriam Yeung), who also has the same smell on her body, and Hanxiang is willing to help him do experiments. After repeated failures, the two embarked on a journey to find floral fragrances and spices, and their feelings grew. The deadline has come, Mengxi went to the palace and met the princess, only to find out that the princess is the girl he is most familiar with.