"Secrets of Tea Patterns" centers on Lin Yan, a minor official in the Northern Song Dynasty. He can see the secrets from the patterns of tea cakes and predict that Tubo will encounter a rare snowstorm in the coming year. Facing the border crisis, he proposed the strategy of "cutting off tea and forcing peace", but he was involved in the undercurrent of the court and the whirlpool of interests of the Tea Horse Company. On the way to verify the prophecy, he must use the pattern of a tea leaf to instigate a war without gunpowder and protect the peace of the border before the weather changes and people's hearts change.
