At the foot of a snow-capped mountain 5,000 meters above sea level, an abandoned Han baby girl was picked up by an old woman and named Kelsang Meiduo. She grew up drinking yak milk, her face is plateau red, but she has the clear eyes of a Jiangnan woman. When she was eighteen years old, the young captain of the geological survey team broke into her world, bringing news from outside the mountain and an unexpected avalanche. When the exploration team thought she had died, Kelsang Meiduo was leading a herd of yaks through a thousand-year-old ice crevice. Her song echoed among the glaciers. It turned out that she was not only a Kelsang flower on the plateau, but also the only descendant of the mountain guard who could understand the code of ancient rock paintings.