This is a true story. The author rewrote this love novel through what happened around him. The protagonist of the story, Qin Changhui, is a doctor. The harmony between his wife and his lover made him eager to delve into the science of sex. During his exploration, he successfully paired a very effective medicinal wine "Oriental Divine Liquid" and discovered a serious problem in the sexual life of a small number of human women - no sexual pleasure. In order to solve this problem, he had used many drugs and tried many methods, but none worked. Many details in this regard are omitted in the novel. Later, Jin Changhui introduced this method to Dr. Qin based on his wife's successful experience. Qin Changhui was curious and searched various books on sexual knowledge and the Internet, but found no particularly effective solution to this problem. This small, particularly effective method may be a blank in the long history of mankind. For this reason, the author wrote this book.