China in the 1920s was in an era of great change.
The dawn of the Republic of China shines on the land of China, but it also hides countless undercurrents of turbulence and change.
The rule of the Beiyang government is crumbling, warlords are separatist, and heroes from all walks of life are vying for power in this ancient land.
Against the background of this turbulent era, a folk legend about the mysterious secret valley spreads among the rivers and lakes, attracting countless explorers and curiosity seekers.
Among them, a mysterious valley hidden in the mountains of western Hunan has triggered a series of legendary stories.