One is from a scholarly family, one is the daughter of a businessman, and the other is the daughter of a medical doctor. In the early years of the Republic of China, in a small town in the south of the Yangtze River, three women with different personalities, Liu Mei, Ye Yao and Lin Wan, became sworn sisters because of their similar interests. Liu Mei's business was maliciously suppressed, and Ye Yao and Lin Wan helped to make it turn around. Later, Ye Yao's father was falsely accused and imprisoned. At this time, a series of suspenseful events occurred. Ye Yao received mysterious letters suggesting that they were related to lost treasures. Strange footprints and symbols appeared in her home, and investigation clues often disappeared inexplicably. A strange epidemic broke out at Lin Wan Medical Center. The three sisters did not give up the pursuit of the truth when facing the dilemma, and finally discovered that behind all this was a conspiracy set by a mysterious figure who coveted the Ye family's treasure map. They worked together to expose the conspiracy, bring the bad guys to justice, rescue Ye's father, and stick to the Golden Orchid promise.
