Su Wantang, the descendant of a centuries-old medicine hall in Suzhou City, became the personal perfumer of Fu Yanqing, the son of a warlord, in order to repay his grandfather's debt. She didn't know that the other person was the burned boy who she had saved with incense ash ten years ago. With the emergence of a lost medical book, the two are involved in the pharmaceutical shady industry and family blood feud. When Fu Yanqing's engagement and the Japanese invasion of China came one after another, Wan Tang took a bullet for him in the fire scene. On the verge of death, she finally saw the secret of the begonia-shaped scar on his wrist...
