The cold pool deep in Yandang Mountain is filled with white steam that cannot be boiled away all year round. The water in the pond is so ice-cold that even in the middle of summer, only the strongest woodcutter dares to wash yarn beside the pond, but no one dares to step foot in the pond - it is said that there is a dragon hidden at the bottom of the pond, and there was a hunter who was greedy to catch the dragon, but in the end even the body was not fished out...