My Sister is Fuji

Travel to a strange world.
The world is like an iceberg, with mystery everywhere.
The first thing people often see is an iceberg floating on the water. They can only feel the tip of the iceberg, but they don't know that there is an endless deep sea buried below.
The deep sea reveals the unknown, and the unknown hides fear.
Just feeling a little bit is enough to drive a normal person crazy.
And my sister, Fujiang, is just the tip of the iceberg.