There used to be a group of people living on the top of the snow-capped mountains. They were called the Manluo tribe by the world.
Living under the top of the snow-capped mountains are purebred night crawlers.
Therefore, the Manluo people have been friends with the purebred Nightcrawlers for generations.
The number of the Manluo tribe is getting smaller and smaller day by day. Gradually, the Manluo people move to the foot of the mountain to live with the purebred night walkers, and the story begins...