The Jokhang Dynasty was founded three hundred years ago and took tea as its foundation. Tea not only penetrated into the life of the people, but also controlled the lifeline of the country's economy - the imperial court established the "Tea Horse Division" to deal with tea taxation and tea introduction (border trade license). The Su family, a tea merchant in the south of the Yangtze River, once dominated with the "Songxue Tower". A hundred years ago, the late emperor obtained the forbidden technique "Cang Ming Lu", which recorded the formula of "Fascinating Tea" (requiring "Hanshan Snow Bud" + "Phoenix Pattern Tea Cauldron"), which was later listed as a royal secret. Now, the Su family has been wronged for "smuggling Mad Heart Tea", the broken pages of the Tea Book have reappeared, and a conspiracy spanning the court, business roads, rivers and lakes has quietly unfolded...