Changbai Mountain, known as "Buxian" in ancient times, is buried under the white snow, shocking secrets that far exceed the world's imagination. Chen Mo, a young geoarchaeologist, accidentally discovered a blood-stained encrypted diary and a strange bronze talisman while sorting through the belongings of his missing grandfather Chen Yuanshan. The diary points to a coordinate in the depths of Tianchi that has not been recorded in history. The desperate warning on the last page - "Living stone... Blood sacrifice... Go!" - Lingers like a curse.
At the same time, the "Netherworld Society", a multinational tomb robbing group, is eyeing the legendary "Changbai Mountain Dragon Marrow" and "Bronze Secret Key" that can rewrite the world. Its leader "Professor" will do anything to seek immortality. In order to pursue the truth behind his grandfather's disappearance and prevent the conspiracy of the "Netherworld Society", Chen Mo formed a special team: the calm and mysterious ancient literature expert Ling Shuang, the old Oroqen hunter Batur who is familiar with the taboos in the mountains and forests, and the cynical but highly skilled mechanic Jin Zhe.
Going deep into the hinterland of Changbai Mountain, the team encountered not only extreme weather and dangerous dense forests. At the bottom of Tianchi, there are hidden ancient waterways leading to layers of underground ruins; deep in the fissures of the volcano, the sleeping Goguryeo Doomsday Fortress is full of mechanisms; and in the legendary "Eye of Guixu", they faced an alien ecology that subverted their cognition. During the layers of exploration, the scattered bronze key fragments were gradually pieced together, pointing to the huge bronze door located deep in the earth's core and engraved with the circulating star map - the legendary door leading to the "source of dragon veins".
