Cultural relic restorer He Tianjiao accidentally traveled to the world of an ancient painting. There, he and Buckwheat Flower went through many challenges hand in hand. From fishing for spirit fish, exploring relics, dealing with power disputes, to resisting foreign enemies, defeating epidemics, carrying out innovation and cross-border cooperation, they continue to solve mysteries and overcome crises. During this period, He Tianjiao was involved in danger several times while exploring the treasure, and he commanded effectively in battles. He also introduced real-life concepts to promote the development of the world in the painting. In the end, He Tianjiao handed over the responsibility of protection to future generations, and his legendary story inspired generations to protect this mysterious and beautiful land.