This is a book for anyone who loves Chinese black tea. Keemun is the first Chinese black tea to go abroad. In The Lady of the Camellias (1848), there is a mention of the habit of drinking Keemun in the society at that time. This book takes Keemun black tea as the narrative core, tells the evolution of Keemun from ancient times to present, and the recognition of Keemun by people at home and abroad. Around Keemun, it recalls the past and present life of the Keemun old tea factory from an architectural point of view, as well as the tea culture of Chizhou, where the factory was located. The book is with rich cultural connotations and tells wonderful stories about tea and the ancient tea culture of China and the city of Chizhou.